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A 1,500kg satellite is placed in an orbit 8,000km above the surface of the Earth.
a. What is the gravitational acceleration of the Earth at that altitude?
b. What is the speed of the satellite?
c. How long does it take the satellite to go around the Earth?
Block B rests on a smooth inclined plane of 21 degrees and block A hangs vertically. Compute the acceleration of the system if the mass of block A is 1.08 kg and that of block B is 5.9 kg.
Suppose a block of mass M is sliding down an inclined plane which makes an angle t with the horizontal. What is the work done by friction as the block travels a distance d along the plane
An electron starts from rest 75.5 cm from a fixed point charge with Q = -0.150 µC. How fast will the electron be moving when it is too far away.
The power P of an Electric circuit varies jointly with resistance , R and with the square of the current, I. find the power if the current is 2.00 A and the resistance is 2.00 ohms
A flight controller determines that an airplane is 30.0mi south of him, Half an hour later the same plane is 30.0mi north west of him, What is the magnitude of its velocity during this time
In a series circuit, r=21ohms L=25mH C=17uF V=150v and w=637rad/s, Calculate the peak current in the circuit
A 720-kg race car can drive around an unbanked turn at a maximum speed of 43 m/s without slipping. The turn has a radius of 160 m, What is the coefficient of static friction between the track and the car's tires
A 1.05 kg mass is attached to a light cord that is wrapped around a pulley of radius 2.65 cm, which turns with negligible friction. Find the moment of inertia of the pulley
An electric car is being designed to have an average power output of 4,900 W for 2 h before needing to be recharged, How much energy would be stored in the charged batteries
A net force of 7 newtons acts on an object that weighs 49 newtons. What is the resulting acceleration
Two large, flat metal plates are separated by a distance that is very small compared to their height and width. Find the field outside the plates on either side
A baseball (mass 0.14 kg, radius 3.7 cm) is spinning with an angular velocity of 56 rad/s. What is its rotational kinetic energy
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