Satellite is in a circular earth orbit
A 6100-kg satellite is in a circular earth orbit that has a radius of 2.7 x 10^7 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 5.6 x 10^6 m. What work must the net external force do?
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A 2.90 x 102-N force is pulling an 90.0-kg refrigerator across a horizontal surface. The force acts at an angle of 19.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 6.00 m. (a) Find
Below are 4 different temperatures associated with a circumstance. Convert these temperatures and match them to the corresponding temperature to the right.
The thrust of its engines is 2.30 x 10^5 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 4.60 x 10^7 J at lift-off. What is the work done on the jet by the catapult?
If you have 0.351 m3 of water at 25.0°C and add 0.112 m3 of water at 95.0°C, what is the final temperature of the mixture?
When an 81.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2.25x10^3 J. By how much does the potential energy of a(n) 18.5-kg child increase when the child climbs a norm
A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. The crest of the second hill is circular, with a radius of r = 34 m.
A truck is traveling at 11.1 m/s down a hill when the brakes on all four wheels lock. The hill makes an angle of 19.0° with respect to the horizontal. The coefficient of kinetic friction between the tires and the road is 0.695. How far does th
A 1.53 kg particle with velocity = (9.44 m/s) - (4.84 m/s) is at x = 1.03 m, y = 6.67 m. It is pulled by a 2.10 N force in the negative x direction. About the origin, what are (a) the particle's angular momentum, (b) the torque acting on the parti
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