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A satellite in Earth orbit has a mass of 92 kg and is at an altitude of 2.04 106 m. (Assume that U = 0 as r ? infinity.) (a) What is the potential energy of the satellite–Earth system? J (b) What is the magnitude of the gravitational force exerted by the Earth on the satellite? N (c) What force, if any, does the satellite exert on the Earth? (Enter the magnitude of the force, if there is no force enter 0.) N
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.72 x 10^-6 T. What is the intensity S of the wave
q1. a 0.12-kg ball is placed in a shallow wedge with an opening angle of 120deg as shown in the figure. for each
A golf ball is shot from a tee, elevated 20.0 m above the green, what will be the speed of the golf ball just before it hits the green, 20.0 m below where it started
In one design, a large spring with spring constant 2×10^4 N/m was placed behind the cannon. The other end of the spring braced against a post that was firmly anchored to ship's frame.
A tennis player receives a shot with the ball of mass 0.060kg travelling horizontally at v=43 m/s and returns the shot with the ball travelling horizontally at 60.00 m/s in the opposite direction.
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of81.0m/sat ground level. What is its velocity just before it hits the ground
The position of a jumping cricket is described by the equation: x=10t-4.0t^2 What is the crickets instantaneous velocity at t=0.2 seconds
What is the density of Neon gas at standard temperature and pressure? The atomic mass of Neon is 20.18 atomic mass unit
Right as the cup begins to slide the applied force is equal to the force of friction-draw a free body diagram for each type of cup, Calculate and label the force due to gravity mg
A cylinder like an oil drum is being rolled across a level floor by a force ~F applied horizontally to the top. find the force of friction between the cylinder and the floor
q1. a 35 g horizontal metal bar 11 cm long is free to slide up and down between two tall vertical metal rods. a
One of the wavelengths of light emitted by hydrogen atoms under normal laboratory conditions is at ?0 = 656.3nm in the red portion of the electromagnetic spectrum, How fast are the emitting atoms moving relative to the earth
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