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A satellite has a mass of 6358 kg and is in a circular orbit 4.89× 105 m above the surface of a planet. The radius of the planet is 4.43 ×106 m. The period of the orbit is 1.7 hours. Evaluate the true weight of the satellite if it were at rest on the planet surface?
A hot-air balloon is ascending at the rate of 12 m/s and is 84 m above the ground when a package is dropped over the side. Explain how long does the package take to reach the ground?
A hydrogen atom in its ground state is excited to the n = 5 level. It then makes a transition directly to the n = 2 level before returning to the ground state. What are the wavelengths of the emitted photons
If a wind begins blowing from the southwest at a speed of 110km/h (average), calculate the velocity (magnitude) of the plane
In a series circuit, r=21ohms L=25mH C=17uF V=150v and w=637rad/s, Calculate the peak current in the circuit
a sphere of radius r starts from rest and rolls without slipping along a curved surface dropping through a vertical
a single mass m1 3.6 kg hangs from a spring in a motionless elevator. the spring constant is k 294.0 nm. now three
A 9.95 kg monkey is hanging by one arm from a branch and swinging on a vertical circle. find he magnitude of the centripetal force acting on the monkey
the pilot of an aircraft wishes to fly due west in a 67 kmh wind blowing toward the south. the speed of the aircraft
A simple pendulum is made from a 0.739-m-long string and a small ball attached to its free end. how much time elapses before it attains its greatest speed
a square coil of wire containing a single turn is placed in a uniform 0.30 t magnetic field as the drawing shows. each
q1. what is the smallest thickness of a soap film n1.47 that will appear black if illuminated with 490 nm light?
A proton initially at rest is accelerated by a uniform electric field. The proton moves 6.48 cm in 1.20 10-6 s. Find the voltage drop through which the proton moves
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