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Question: The diameter of the moon is 2260 mi. and its distance from the earth is 230,000 mi. Find the diameter of the image of the moon formed by a spherical concave telescope mirror of focal length 10 ft.
A person who weighs 616 N is riding a 108-N mountain bike. find the area of contact between each tire and the ground
A charged particle moves in a uniform magnetic field of 0.727 T with a period of 8.57 × 10-6 s. Find its charge-to-mass ratio
a 55 kg swimmer is standing on a stationary 175 kg floating raft. the swimmer then runs off the raft horizontally with a velocity of + 3.7 m/s realtive to the shore. Find the recoil velocity that the raft would have
A 60 kg woman stands on a very light, rigid board that rests on the bathroom scale at each end. She is 1.5m away from one side and 0.5 m from the other.
An eagle is flying horizontally at 7.8 m/s with a fish in its claws. It accidentally drops the fish, How much time passes before the fish's speed doubles
q1. an airplane is flying with the velocity of 85.0 ms at an angle of 20.0 degrees above the horizontal. when the plane
A box starts out at the top of a frictionless ramp, then slides down. The ramp has a heighth=3meters and a slope of5degrees with respect to the ground. What is the total mechanical energy of the box at the top of the ramp
A battery with an emf of 12.0 V shows a terminal voltage of 11.3V, What is the battery's internal resistance
A loop of radius R in the x - y plane is centered at the origin and carries a current I. What is the force on the wire
For two concentric conducting rings, the inner radius of the larger ring is 12.0 cm and the outer radius of the smaller ring is 4.0 cm. The electric potential of the inner ring is 0 and that of the outer ring is 10 V.
A photon is emitted when a hydrogen atom undergoes a transitionfrom the n = 5 state to the n = 3 state. Calculate the energy (in electron volts) of the emitted photon
Two Satellites A and B, each of mass 50 kg are in circular orbits at altitudes of 1000 km and 35000 km respectively. What is the difference in gravitational potential energies of the two satellites in their respective orbits
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