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A telescope consists of a mirror with radius of curvature 6.5 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 114, what focal length eyepiece should he use?
The following two traveling waves are super posed to create at standing wave: What is the resulting amplitude of the standing wave
A building is being knocked down with a wrecking ball, which is a big metal sphere that swings on a 10-m-long cable. How much time do you have to move out of the way
A negative charge orbits a positive charge. The orbit is a perfect circle, What is the period of the orbit of the negative charge
q1. the pulley system is used to lift a 52 kg crate. note that one chain connects the upper pulley to the ceiling and a
A swimmer heads directly across a river, swimming at 1.49 m/s relative to the water. She arrives at a point 42.0 m downstream from the point directly across the river, What is the swimmer's speed relative to the shore
At time t = 0 s, a wheel has an angular displacement of zero radians and an angular velocity of +15 ras/s. The wheel has a constant acceleration of -0.45 rad/s2. In this situation, the maximum value of the angular displacement, in rad, is closest to:
A uniform electric field with a magnitude of 250N/C is directed in the positive x direction. A 12uC charge moves from the origin to the point (20.0 cm, 50.0 cm). what is the change in electrical potential energy of the system as a result of the ch..
Two particles, one with charge -7.13 %u03BCC and one with charge 7.75 %u03BCC, are 3.59 centimeters apart. What is the magnitude of the force that one particle exerts on the other
The carbon monoxide molecule (CO) consists of a carbon atom and an oxygen atom separated by a distance of 1.13 x 10-3m. Determine the location of the center of mass of this molecule relative to the carbon atom
A uniformly accelerated car passes three equally spaced traffic signs. The signs are separated by a distance d = 20 m. What is the magnitude of the acceleration of the car
A gun shoots small plastic balls. The ball falls 1.2 m while traveling horizontally 5.1 m. Calculate the speed the ball leaves the gun
a bicycle racer is going downhill at 11.0 m/s when, to his horror, one of his 2.25 kg wheels comes off when he is 75.0 m above the foot of the hill. how much total kinetic energy does the wheel have when it reaches the bottom of the hill
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