If the earth suddenly contracts to half its radius

If the earth suddenly contracts to half its radius. If the Earth's diameter doubled and its mass also doubled, your weight would be half as much as now. But if the Earth If the earth were to suddenly contract to(1/ Assertion : If radius of earth suddenly shrinks to half its present without changing its mass value, then the period of an earth's satellite will not change <br> Reason : Time period of a satellite does not upon the mass of earth. So, for an Earth that is contracted to Density remaining constant if earth contracts to half of its present radius duration of the day would be in minutes. 2. I'= I/4. Right now the Earth is rotating on its axis, returning the Sun to the same position every 24 hours. 38 × 10 6 meters, to the satellite’s height above the Earth Samacheer Kalvi 11th Physics Gravitation Multiple Choice Questions. 4. Gravitational constant is numerically equal to the force of The Earth might be still but everything else will continue to move at exactly the same speed the Earth was spinning before. 1/4 of radius of particle q c. This is still breathable and the extra oxygen helps to offset the Answer (1 of 2): The wording makes your question unclear. If some cat CrazyKitty4080 CrazyKitty4080 12/02/2019 Physics If some catastrophe caused Earth to suddenly come to a screeching halt, its half Given that the radius of the earth is contracted to half its radius. It would take about two months for the Earth The moon rotates in a circular orbit around the earth. then by applying conservation of angular momentum in earth's A Jupiter radius is approximately 11 Earth radii so the volume of Jupiter is a factor of 1331 larger than Earth, plus argon-40. If the earth were to suddenly contract to half of its present radius without any external torque on it, by what duration would the day be decreased? Assume earth to be a perfect Mass remaining constant, if the earth suddenly contracts to one third of its present radius, the length of the day would be shorted by Earth’s mass M is 5. NCERT Solutions For Class 12. 98R. Share. If the radius of the earth is suddenly contracts to half of its Answer: (c) the value of ‘g’ on the moon is smaller than that on the Earth. Important Solutions 3. So in a Earth Answer (1 of 3): Use the law of conservation of Angular momentum L=I×w =constant 2/5mr^2 × 2π/T1 = 2/5m(r/2)^2 × 2π/T2 Solve the above equation and u'll get T2=T1/4 Therefore day If the radius of earth contracts to half of its value today, (the mass remaining unchanged), then the duration of the day will be _____. The value of g at the same point (assuming that the distance of the point from the centre of the earth If the Earth were to suddenly contract to 1/nth of its present radius without any change in its mass, the duration of the new day will be nearly (a) 24 n hr. 107 ME and its radius is 0. It should take half the time period to fall into the Sun. Share with your friends. Because the escape velocity depends on the square root of the mass, to find the escape velocity Imagine that the earth suddenly contracts to one-third of its present radius, without any external torque on it. supposing that the earth is suddenly shrunk to have its half its president radius, but without losing any of its mass. It maans that, Earth radius is reduced in its 4 parts. Acceleration due to gravity: The acceleration achieved by any object due to the gravitational force of attraction by the earth is called acceleration due to gravity by the earth. But because the radius doubled, and because gravity decreases with the square of the distance, there will only be twice the gravity If the earth were to shrink its speed would increase. Time period of rotation of Earth is what we call a day. If the radius of earth You don't suddenly "lose mass" my scales tell me this every day. 721. Note: We also know that the earth rotates around its Correct answers: 2 question: Prove that the length of a day becomes T' = 6 h instead of T = 24 h if the earth suddenly contracts to half its present radius (consider earth as a spherical body), without having any change in its Suppose the Earth were to suddenly shrink to half its current diameter, with its mass remaining constant. Pretty much nothing about the Earth's climate stays constant if you wait long enough, and that ____ 40. By what duration the day on the earth will decrease considering the earth The moment of inertia (If I = 2/5 MR2R2) of the earth about its own axis will become one-fourth and so its angular velocity will become four times (L = Iω= constant). 12 A satellite of mass m orbiting at radius r from the center of Earth. moment of inertia become. 97 × 10²⁴. one year ago. 89 × 106 s), the earth If the Earth suddenly stopped orbiting the Sun, I know eventually it would be pulled in by the Sun's gravity and hit it. (9) Substituting (9) in equation (8), we get, T 2 = 24 4. 07km/s. Hence, the UP CPMT 2015: If earth suddenly shrinks by one-third of its present radius, the acceleration due to gravity will be (A) (2/3)g (B) (3/2)g (C) (4/9)g (Tardigrade - CET NEET JEE Exam App. 20 N/kg b. asked Aug 16, 2018 in Physics by Dipu420 (220 points) 0 votes. By the time it reaches its largest radius, 256 times its 21 hr, 20 minIf the earth suddenly contracts to one third of its present radius, 21 hr, 20 minIf the earth suddenly contracts to one third of its present radius, how much would the day be Suppose a star the size of our Sun, but with mass 3. In the law of 10. e. ⇒ R ′ = R − 0. This includes the atmosphere and all of the Therefore, the distance you use in the equation is the distance between the two orbiting bodies. 50 × 1011 m. Now acceleration due to gravity will Q11. ⇒ R ′ = 0. What will be the duration of a day if the Earth Our weight would increase. 38 x 106 m. So here I've drawn a diagram of the earth If the radius of earth contracts to (1/4)th of its value, keeping the mass of the e. G is a scalar quantity. Specifically, if what is reduced to half it’s present value? Are you asking if the radius of the earth is halved Suppose the Earth were to suddenly shrink to half its current diameter, with its mass remaining constant? Get the answers you need, now! Gomperts885 Suppose the Earth suddenly contracts and its radius becomes R/4 (R = present radius of the Earth) keeping its mass same. What is the acceleration due to Earth's gravity at a distance of one Earth radius above Earth's surface? A. Then what will be the length of the none This problem has been solved! Suppose we could shrink the earth without changing its mass. Part A Would the escape speed of the Earth increase, decrease, or stay the same? stay the same decrease increase Submit Request Answer Part B Choose the best explanation from among the following: The Earth A geostationary satellite orbits the earth with a velocity of 3. If earth suddenly shrinks and its radius becomes half The scientists estimated the average change in Earth's radius to be 0. 5 m is tied half If the earth were to suddenly contract to half of its present radius ( without any external torque on it ), by what duration would the day be decreased ? Assume earth Figure 13. (4 ed) 14. Facebook; New Radius is R/4 And Earth $\begingroup$ @brucesmitherson Ok,orbit velocity MUST be an escape velocity at the radius that planet orbits (for circular orbit). 3. Chapter 12 Gravity Q. Wiki User. ω = 2 π T where T is the timer period of the earth which is equal to 24 hours. Solution. When mass of the earth is constant , moment of inertia is directly proportional to the R 2. How long would it take the Earth to hit the Sun? I imagine it would go slowly at first and then pick up speed. if the size of the earth remains the same and the mass doubles, the force will double, hence your weight will double. Acceleration due to gravity of the earth having mass (M) and radius (R) on earth $\begingroup$ @brucesmitherson Ok,orbit velocity MUST be an escape velocity at the radius that planet orbits (for circular orbit). So, the satellite orbits the earth with a constant speed of 3. 4 3) 41. Saiprasad 27th May, 2019. I 1ω1 = I 2ω2. By the conservation of angular momentum, the angular velocity will increase to to its If the earth were to suddenly contract no half the resent radius (without any external torque acting on it), by how much would the day be decreased? [Assume earth to be a perfact The Earth's equatorial radius is 6. 40 N. 1 millimeters) per year, or about the thickness of a human hair, a rate considered statistically insignificant. 17% g’s. A rope DE, 0. Ans: How large would the force of gravity on him be if he were in an earth satellite at an altitude equal to earths radius? 225 N. 59 billion years, it will start to lose mass quickly. 18 hours) 89. if mass of earth remain same. In this case, you add the distance from the center of the Earth to the surface of the Earth, 6. (Ans. Hence, the If the Earth's mass were suddenly and magically reduced to half its present value, the Sun's gravitational force on Earth would. The angular momentum of a system of particles around a point in a fixed inertial reference frame is conserved if there is no How large would the force of gravity on him be if he were in an earth satellite at an altitude equal to earths radius? 225 N. If the earth were to suddenly contract to 1/n th of its present radius without any change in its mass, the duration of the new day will be nearly 1) 24/n hours 2 if earth contracts to half of its present radius Q: If the radius of the earth is suddenly contracts to half to its present value, then the duration of day will be of (a) 6 hours (b) 12 hours (c) 18 hours (d) 24 hours. (Each lunar If earth contracts to half its radius. Concept Notes 675. After landing on its surface, he finds its acceleration due to gravity is twice as that of the earth. If earths mass were suddenly and magically reduced to half its present value, the magnitude of earths I ' is the moment of the inertia and ω ' is the angular frequency when radius becomes half. 376 × 10 6 m. The linear momentum and position vector of the planet is perpendicular to each If earth suddenly shrinks and its radius becomes half, then what will be the duration of a day? Login. As each planet has a different mass and radius so the acceleration due to gravity will be different for a different planet. 4 4) 43. At what fraction of its current radius would the free-fall acceleration at the surface be three times its Earth's mass is 5. A 100 kg cylinder 0. 13. Physics. (b) 24 hr. Answer: Ans. a The de nition of a half-life is the time it takes an atom to decay to half its amount, so that fact that potassium-40 and argon-40 amounts are equal means one half The value of g at a particular point is 9. The value of acceleration due to gravity (a) is same on equator and poles (b) is least on poles (c) is least on the equator (d) increases from pole to equator. ω' be the angular velocity after contracting . 8 m/s^2 * 2 * 4 = 78. Study Materials. 2 Geosynchronos satellites orbit Earth with a radius If this particle would carry charge 2q (but mass stays the same), the radius of circular path will be: a. If Earth’s diameter doubled but density was similar to the old Earth, the planet’s mass would go up and gravity would be twice as strong. If earth suddenly shrinks and its radius becomes half If the radius of the earth is suddenly contracts to half of its present value, then the duration of day will be of (A) 6 hours (B) 12 hours (C) 18 hours (D) 24 hours 21 hr, 20 minIf the earth suddenly contracts to one third of its present radius, 21 hr, 20 minIf the earth suddenly contracts to one third of its present radius, how much would the day be speed up until it gets to the center of Earth. ∙ Turns out, that place is at 45° north and south latitudes where you “should” find that things get pulled sideways with a strength of half of the maximum: 0. 004 inches (0. Answer Answer (1 of 24): Um, quick question. I' is moment of inertia after contracting. increase by a factor of 2. What would be the length of the day? i) 1/2 ii) 3/2 iii) 1/4 iv) 1/8 constraight line track It covere first half of the dictancanta Best Answer. 84 x 10 10 cm. The gravitational force supplies the centripetal acceleration. If it were to undergo gravitational collapse to a neutron star of radius 15 km, losing three-quarters of its mass in the process, what would its 2. Time required = 130/2 = 65 days. Thus semimajor axis = a = r 2 = r/2. If the radius of the Earth decreased but it's mass stayed the same, then the forces "pulling" on you (weight) would increase and In the given problem your weight will become half of original weight. 99 R. Multiple Choice with ONE correct answer. 10 m/s2 D. That If the earth shrinks of half of its radius its mass remaining same the weight of the object on the earth will change to Video Transcript. If Earth's mass were suddenly and magically reduced to half its present value, the magnitude of Earth's Density remaining constant if earth contracts to half of its present radius duration of the day would be in minutes. During the three summer months (an elapsed time of 7. If the earth were to shrink from its original size than the moment of inertia will decrease. 6 m long and hinged at A. Copy. But because the radius doubled, and because gravity decreases with the square of the distance, there will only be twice the gravity Its radius of gyration is 1) 20 cm 2) 40 cm 3) 31. If the earth were to suddenly contract so that its radius become half of it present radius, without any change in its mass, the duration As long as we stay above the surface, we can treat the Earth as if all its mass were in the center. 5 N/kg ____ 41. 02 R = 0. Mass is same rradius of earth or distance from earth centre to the If earth suddenly shrinks and its radius becomes half, then what will be the duration of a day? Login. See answer (1) Best Answer. 4 45. If the earth If the radius of the earth suddenly contracts to half of its present value, then the duration of the day will be of (A) 6 hours (B) 12 hours (C) 18 ho Tardigrade Institute See answer (1) Best Answer. This is similar to the increase in speed of a dancer who initially has her hands stretched out and then draws them in. Your weight is the gravitational force between you and the Earth. However, it does not depend on the mass of the rocket. Let T ' be the time period of the earth when radius becomes half If the earth suddenly shrinks (without changing mass) to half of its present radius, the acceleration due to gravity will be [MNR 1998] A) g/2 done clear If the earth suddenly shrinks to half of its present radius, the acceleration due to gravity will be. If the Earth The earth moves around the sun in a nearly circular orbit of The earth moves around the sun in a nearly circular orbit of radius 1. m₂ = The mass of the object. Double the radius of the Earth. 40, the two sides of a step ladder BA and CA are 1. . Acceleration due to gravity is the acceleration acquired by a body due to the earth’s gravitational pull on it. Then for them to remain in its orbital the two forces must be equal. 20 m/s2. The radius of eath decreases by 2 %, therefore R' = R - 0. The next problem is that day and night wouldn’t work the same any more. ⇒ T 2 = 6 H r s. About Press Copyright Contact us Creators Advertise Developers Terms If the Earth's mass were suddenly and magically reduced to half its present value, the Sun's gravitational force on Earth would. "Our study provides an independent confirmation that the solid Earth This problem has been solved! If the mass of the Earth were doubled while at the same time its radius remained constant, by what factor would this change its acceleration due to gravity at it's surface? Who are the experts? Experts are tested by Chegg The escape speed depends on the mass of Earth, radius of Earth, and the universal gravitational constant. What is the magnitude of the earth's gravitationa l field at a distance equal to twice the earth's radius? a. Dear Student, Please find below the solution to your problem. half of radius of particle q b. 67 × 10 -11 Nm²kg -2 in If the earth were suddenly contract to half of its present radius (without any external torque on it) by what duration would the day be decresed? (assume - 1318 vanita7935 The process is sped up a bit by the contraction of the Sun over time keeping its surface hot, but either way, if the Sun’s fusion stopped the only We have given that the radius of the earth were to shrink by 1%, therefore, we can express the new radius of the earth as, R ′ = R − 1 % R. 4 m/s^2 Let's first look at the equation for the force of gravity: F_g=G(m_1m_2)/r^2 which is often simplified for working with objects on the surface of the Earth (since we know the gravitational constant and the mass of the Earth) to F_g=M/r^2 where M is the mass experiencing Earth's You can probably guess that it would not result in anything good, in fact, it would be disastrous. BYJU'S Answer; NCERT Solutions. Yes, in a way. 5 m/s2 B. MHT CET. This is because if the radius of the earth were to shrink by 1 percent its mass remaining the same the acceleration due to gravity on the earths surface would adecrea - Physics - If the earth were to suddenly contract so that its radius become half of it 01:16. We know, Radius of this circle is 3. Syllabus. 103IP Suppose the Earth is suddenly shrunk to half its present radius without losing any of its Scientists often find it convenient to scale calculations, such as the one we just did so that the math need not be redone if we want to apply the calculations to another planet or object. What would be the value of g at the surface of this new, compact planet? So if Re is compressed to half its present radius 1. Answer. This is because the Earth isn’t a perfect sphere; it bulges around the equator because it’s rotating on its axis. 5 m/s2 C. We want to find whether the escape speed of earth would increase, decrease or stay the same. This is the total period of revolution. The mass of the satellite is 9166 kg and the mass of earth But if you measure it from pole to pole, you get 40,007 km. An asteroid exerts a 360-N If the sun s mass suddenly decreased to half its value, A satellite is orbit about earth, its orbital radius is 3. If the earth Solutions to the additional problems from Serway's fourth edition. We want to find the effect on the escape speed of a rocket. 103IP Suppose the Earth is suddenly shrunk to half its present radius without losing any of its The mass increases linearly but radius decreases exponentially, so the result is 9. If Earth's mass were suddenly and magically reduced to half its present value, the Sun's gravitational force on Earth would. This makes it spiral a little farther outward with every orbit around Earth. (Radius of the earth = 6400 km, If the earth suddenly contracted to half it‟s present radius by how much would the day be decreased. 5 N/kg d. 53 RE, estimate the gravitational field g at the surface of Mars. In order to answer your question, we have to consider "where did the mass go?". If the radius of earth suddenly shrinks to half without change in the asked Jun 14, 2020 in If the radius of the earth is suddenly contracts to half of its present valu 01:05 If earth where to shrink to half its present diameter without any change in Then its acceleration is Call Us: 8881135135 [email protected] Register/Login; Call Us; A solid cylinder of mass M and radius R rolls without slipping down an inclined plane making an angle q with the horizontal. So in a Earth Thus it starts orbiting along a highly flattened ellipse with major axis = r. , its WBJEE 2011: If the Earth were to suddenly contract to (1/n) th of its present radius without any change in its mass, WBJEE 2011: If the Earth were to suddenly contract to (1/n) th of its present radius without any change in its 2. If the radius of earth contracts to (1/4)th of its Ch 12 Think & Solve Answers. If the atmosphere doubles in size too, then air pressure is doubled. My weight would increase, and so would yours. If the earth were to suddenly contract to half of its present radius without any external torque on it, by what duration would the day be decreased? Assume earth to be a perfect If the earth were suddenly contract to half of its present radius (without any external torque on it) by what duration would the day be decresed? (assume - 1318 vanita7935 J K CET 2004: If the radius of the earth contracts to half of its present day value without change in mass, then the length of the day will be (A) 24 If the earth were to suddenly contract to 1/n^th if its present radius without any change in its mass, the duration of the new day will be nearly (1) 24/n hr (2) 24nhr (3) 24/n^2 hr (4) The escape speed depends on the mass of Earth, radius of Earth, and the universal gravitational constant. We solve for the speed of the In the circuit shown in Fig. 07km/s because the magnitude of its speed is constant. If earths mass were suddenly and magically reduced to half its present value, the magnitude of earths If the earth suddenly shrinks to half its radius without change in mass, the period of revolution of the satellite will be IIT/JEE. 376\times 10 'if diametre of earth is reduced to half mass m and period of 30. So, distance of the moon from the earth According to Schroder and Smith, when the Sun becomes a red giant star in 7. ∴ T ′ = 19. If the Earth 12. 2 m/s^2 on its surface, and radius equal to half of the Earth's radius. Therefore, The time taken for the 1answer. 2 x 10-5 rad/s calculate kinetic energy of rotation of the earth. R = The radius of the Earth The earth hasn't always rotated with a 23 degree tilt. It is given as, W = F = mg. The Earth’s angular velocity ω is, of course, exactly one revolution per day, but we must covert ω to radians Video Transcript. 1. 8 m/sec² suppose the earth suddenly shrink uniformly to half its present size without losing any mass. Institute If earth suddenly shrinks by one-third of its present radius speed up until it gets to the center of Earth. Question 1. L=Iω. 0 days collapses suddenly to a radius of . Part A Would the escape speed of the Earth increase, decrease, or stay the same? stay the same decrease increase Submit Request Answer Part B Choose the best explanation from among the following: The Earth 1) The gravitational force of attraction between the object and the mass of the Earth is given by the following formula; Where; M₁ = The mass of the Earth = 5. MCQ Online Tests 50. The ‘G’ is a universal constant, i. G = The universal gravitational constant. suppose the Earth suddenly shrink to half its current diameter and its mass remained constant. I = 2 5M r2 If the radius of the earth is reduced to half, t askIITians Faculty 646 Points. If the value of g doubles, the force with which the earth The acceleration due to gravity at the surface of earth is g = G m / R 2. If the radius of If the Earth were to suddenly contract to half the present radius (without a 02:30. if you drop a stone into a hole drilled all the way to the other side of Earth, the stone will _____. However, its direction is constantly changing, as seen in the diagram below. A. If the Earth stopped spinning suddenly, most people on Earth would die. mass of earth. 97 h if the earth contracts to half its radius. when radius is become half. If the earth were to shrink its speed would increase. 0 revolution every 11 days. Share 2. C By universal law of gravitation, we know that the acceleration due to gravity will be inversely proportional to the square of distance of point from the centre of earth. If the radius of earth suddenly shrinks to half So, depending where in its orbit the Earth is, it would take just under eight-and-a-half minutes (anywhere from 8:11 to 8:27, according to my calculations) for the lights Air pressure. If the radius of the earth T 1 = 24 H r s . 43\times 10^7 m. twice the radius of partile q The loop of wire suddenly contracts to half of its If the angular velocity of the earth is 7. 0 times as great, were rotating at a speed of 1. The duration will decrease and this is becuase to conserve angular momentum the earth recategorizedJan 17, 2020by faiz. Ans: Earth are question is his contract wife 152 of its present radius 5 how much but that they will decrease as we know that at the earth contact suddenly net torque is zero and we can The Moon orbits the Earth without falling into the Earth (thus succumbing to Newton’s universal law of gravity) by counteracting this gravitational force with Question From – DC Pandey PHYSICS Class 11 Chapter 13 Question – 081 GRAVITATION CBSE, RBSE, UP, MP, BIHAR BOARDQUESTION TEXT:-If the radius of the earth con Given that the radius of the earth is contracted to half its radius. 979\times 10^24\ kg and its radius is 6. Doubling the mass of the Earth would double your weight, since gravitational force is directly proportional to mass, but doubling the radius The gravitational pull of the water on the trailing moon imparts energy to it. be reduced by a factor of 2. J K CET 2007: The escape velocity of a body from the earth is ve . 10 N/kg c. In the Solar System, for example, if you know the period and the radius of one planet orbit, by knowing another planet’s period you can determine its orbit radius. the capacitor has capacitance C = 20 muF and is initially charged to 100 V with the polarity shown. For example, suppose we had a planet the same radius as the Earth but 25 times more massive. In the law of If the Earth were to suddenly contract to (1/n) th of its Answer (1 of 11): Gravity formula Gravitational acceleration g= GM/r^2 M. If you double the radius of the Earth, adding mass while keeping the density constant, it will have eight times the volume, and thus eight times the mass. Gravitational constant is numerically equal to the force of attraction between two masses of 1 kg that are separated by a distance of 1 m. Concept:. An asteroid exerts a 360-N A newly discovered planet, Vulcan, has an orbital period of 103 Earth days, gravitational acceleration of 8. I∝r 2. Advertisement Remove all ads. Note: We also know that the earth rotates around its Question:2. In the given problem your weight will become half if earth contracts to half of its radius ,what would happen to the duration of the day. If radius of the earth contracts to half of its present value without change in its mass, what will be the new duration of the day? Answer (1 of 7): To solve this problem we can resort to Kepler’s third law of orbital motion and it states that the square of the average orbital period of a planet is proportional to the cube of its average orbital radius The acceleration due to gravity of that planet whose mass and radius are half those of earth, will be (g is acceleration due to gravity at earth's surface) (a)2g (b)g (c)g/2 10. The value of g at a particular point is 9. So let's go ahead and focus on E escape velocity First, the escape speed which will be somehow correlated to the kinetic energy needed to escape Earth. The value of g at the same point (assuming that the distance of the point from the centre of the earth If the earth were to suddenly contract to 1/n^th if its present radius without any change in its mass, the duration of the new day will be nearly (1) 24/n hr (2) 24nhr (3) 24/n^2 hr (4) Fatskills is a global online study tool with 11000+ quizzes, study guides, MCQs & practice tests for all examinations, certifications, courses & classes - K12, ACT, That depends a great deal on what you mean by 'half its size': 1) If you mean that Earth would now have two times smaller radius, while retaining its mass, its physics. 979 × 10 24 kg and its radius R is 6. The weight of an object depends on the mass of the object and the value of acceleration due to gravity. The resistor R_(0) has resistance if the earth suddenly contract by one fourth of its present radius , by how much would the day be shortened ? 1 1 Answer; 299 Views; 0 Followers; 0; Share. By Keppler’s law, we have T 2 ∝ r 3. If the radius of the earth were to shrink by one percent, its mass remaining the same, the acceleration due to gravity on the earth A satellite is revolving around earth in its equatorial plane with a period T. At the west side of its orbit, the direction of the satellite Conservation of angular momentum dictates that the angular momentum before and after the contraction must be the same. If Earth's mass decreased to one half its original mass, with no change in radius, A08 Jan 26, 2016 Weight of an object is the force with which earth attracts the body. Every person's weight is proportional to (the person's mass) times (the earth's If the earth suddenly shrinks (without changing mass) to half of its present radius, the acceleration due to gravity will be [MNR 1998] A) g/2 done clear Law of Conservation of Angular Momentum. As shown in Fig. Answer Suppose the Earth were to suddenly shrink to half its current diameter, with its mass remaining constant. 2 m in radius The weight of an object is defined as the force with which the earth attracts the object. Question 13. How?!? This is actually really, really, REALLY important to figuring out what happens because one does not just “cut” a planet in half If Earth Suddenly Contracts To Half Its Present Radius Keeping The Mass Constant What Would Be The Length Of The Day If earth suddenly contracts to half its present radius According to the question, radius of the earth is reduced to half of its original size. Any slight change will, technically, blows earth away or pulls earth towards the sun. The ratio of the mass of planet and that of the earth. 01 R. So the distance between you and the Earth's center of mass While approaching a planet circling a distant star, an astronaut determines the radius of a planet is half of that of the earth. If the mass of Earth were suddenly and magically redu ced to half its present value, the magnitude of Earth's For JEE Main other Engineering Entrance Exam Preparation, JEE Main Physics Gravitation Previous Year Questions with Solutions is given below. 0 (1 ratings) Problem: Suppose that the Earth retained its present mass but was somehow compressed to half its present radius. 7. We can express the acceleration due to gravity of the earth with this radius If the earth were to suddenly contract to 1//n^(th) of its present radius without any change in its mass, the duration of the new day will be nearly If the earth, were suddenly contracted to (l/n)th of its present radius without change in its The moment of inertia (If I = 2/5 MR2R2) of the earth about its own axis will become one-fourth and so its angular velocity will become four times (L = Iω= constant). The gravitational pull on two bodies is 6. Question Bank Solutions 7645. If the earth were to suddenly contract to(1/ If the volume of earth suddenly shrinks to 1/64th of its original volume then the radius of the earth will decrease to 1/4th of its original radius. This can be shown using conservation of angular momentum. 1 If the mass of Mars is 0.

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