Cengage JEE Mains Physics by B.M Sharma
If a man at the equator would weigh (3/5)th of his weight, the angular speed of the earth is
13
Sep
If a man at the equator would weigh (3/5)th of his weight, the angular speed of the earth is If a man at the equator would weigh (3/5)th of his weight the angular speed of the earth is September 13, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 10 - Gravitation ,
The distances from the centre of the earth, where the weight of a body is zero and one-fourth that of the weight of the body on the surface of the earth are(assume R is the radius of the earth).
13
Sep
The distances from the centre of the earth, where the weight of a body is zero and one-fourth that of the weight of the body on the surface of the earth are(assume R is the radius of the earth). The distances from the centre of the earth where the weight of a body is zero [...]
Two equal masses each ′m′ are hung from a balance whose scale pans differ in vertical height by ′h′. the error in weighing in terms of density of the earth p is
13
Sep
Two equal masses each ′m′ are hung from a balance whose scale pans differ in vertical height by ′h′. the error in weighing in terms of density of the earth p is Two equal masses each ′m′ are hung from a balance whose scale pans differ in vertical height by ′h′. the error in weighing [...]
The maximum vertical distance through which a fully dressed astronaut can jump on the earth is 0.5m. If mean density of the Moon is two-third that of the earth and radius is one quarter that of the earth, the maximum vertical distance which he can jump on the Moon and the ratio of the time of duration of the jump on the Moon to hold on the earth are
13
Sep
The maximum vertical distance through which a fully dressed astronaut can jump on the earth is 0.5m. If mean density of the Moon is two-third that of the earth and radius is one quarter that of the earth, the maximum vertical distance which he can jump on the Moon and the ratio of the time [...]
If the radius of the earth decreases by 10%, the mass remaining unchanged, what will happen to the acceleration due to gravity?
13
Sep
If the radius of the earth decreases by 10%, the mass remaining unchanged, what will happen to the acceleration due to gravity? If the radius of the earth decreases by 10% the mass remaining unchanged what will happen to the acceleration due to gravity? September 13, 2020 Category: Cengage JEE Mains Physics by B.M Sharma [...]
Three uniform spheres, each having mass m and radius R, are kept in such a way that each touches the other two, the magnitude of the gravitational force on any sphere due to the other two is
13
Sep
Three uniform spheres, each having mass m and radius R, are kept in such a way that each touches the other two, the magnitude of the gravitational force on any sphere due to the other two is are kept in such a way that each touches the other two each having mass m and radius [...]
Two satellites A and B of masses m1 and m2(m1 = 2m2) are moving in circular orbits of radii r1 and r2(r1 = 4r2), respectively, around the earth. If their periods are TA and TB, then the ratio TA/TB is
13
Sep
Two satellites A and B of masses m1 and m2(m1 = 2m2) are moving in circular orbits of radii r1 and r2(r1 = 4r2), respectively, around the earth. If their periods are TA and TB, then the ratio TA/TB is around the earth. If their periods are TA and TB respectively then the ratio TA/TB [...]
The value of g (acceleration due to gravity) at earth’s surface is 10ms^−2. It’s value in m/s at the centre of the earth which is assumed to be a sphere of radius R metre and uniform mass density is,
13
Sep
The value of g (acceleration due to gravity) at earth’s surface is 10ms^−2. It’s value in m/s at the centre of the earth which is assumed to be a sphere of radius R metre and uniform mass density is, The value of g (acceleration due to gravity) at earth's surface is 10ms^−2. It's value in [...]
A satellite moves around the earth in a circular orbit with speed v. If m is the mass of the satellite, its total energy is
13
Sep
A satellite moves around the earth in a circular orbit with speed v. If m is the mass of the satellite, its total energy is A satellite moves around the earth in a circular orbit with speed v. If m is the mass of the satellite its total energy is September 13, 2020 Category: Cengage [...]
A satellite of mass m is revolving around the earth at height R (radius of the earth) from the earth’s surface. Its potential energy will be:
13
Sep
A satellite of mass m is revolving around the earth at height R (radius of the earth) from the earth’s surface. Its potential energy will be: A satellite of mass m is revolving around the earth at height R (radius of the earth) from the earth's surface. Its potential energy will be: September 13, 2020 [...]