How much torque would be necessary to bring the earth to a stop in its rotation about its own axis in 1 year?
How much torque would be necessary to bring the earth to a stop in its rotation...
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 1.1 x 1020 J.
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 1.1 x 1020 J
Calculate the kinetic energy that the earth has because of its rotation about its own axis. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 9.33 ✕ 109 J. J Calculate the kinetic energy that the earth has because of its motion around the sun.
1. Calculate how much torque the hamstrings must generate to bring a leg swinging at 25 rad/s angular to stop in 0.2 s, given that the leg’s moment of inertia is 0.8 kg-m2? (Rounding to the nearest integer)
The tidal forces between the Earth and the Moon slowed down the Moon's rotation about its own axis until the rotation period became equal to the Moon's orbital period around the Earth as we observe today. The same effect is also slowing down the Earth's rotation about its own axis and increasing the separation \(D\) between the Moon and the Earth at a rate of \(\Delta D / \Delta t=3.8 \mathrm{~cm}\) per year. In this problem, you can ignore the...
Assume that the earth is a uniform sphere and that its path around the sun is circular.(a) Calculate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one yearis about 9.33 109 J.J(b) Calculate the kinetic energy that the earth has because of its motion around the sun.J
5. The flywheel of an engine has moment of inertia 2.50 kg m2 about its rotation axis. What constant torque is required to bring it up to an angular speed of 400 rev/min in 8.00s, starting from rest? ANS: 13.1 N m
5*) Find the angular velocity of the Earth due to its daily rotation and express it in radians per second. Then use it, and a model of the Earth as a solid sphere of mass M= 5.97 × 1024 kg and radius R = 6.37 × 106 m, to estimate the angular momentum of the Earth due to its rotation around its axis. (The result should be of the order of 1033 kg m2/s. This is called the Earth’s “intrinsic”...
(a) Calculate the torque required to accelerate the Earth in 6 days from rest to its present angular speed about its axis. (b) Calculate the energy required. (c) Calculate the average power required.
The flywheel of an engine has a moment of inertia 240 kg-m2 about its rotation axis torque is required to bring it up to an angular speed of 440 rev/min in a lime of 7 90s, starting from rest? What N m - Part B