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A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance.
(a) How long is the ball in the air?
(b) What must have been the initial horizontal component of the velocity?
(c) What is the vertical component of the velocity just before the ball hits the ground?
(d) What is the velocity (including both the horizontal and vertical components) of the ball just before it hits the ground?
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 5.90 m/s2, What angle does the ramp make with respect to the horizontal
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A solid, frictionless cylindrical pulley with a mass of 3kg and a 0.420 m radius is used to draw water from a well. A 1.50kg bucket is attached to a cord that is wrapped around the pulley. If the bucket starts from rest at the top of the well and ..
An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer first sees the car, the locomotive is 130 m from the crossing and its speed is 17 m/s.
Find the magnification of the heater element given that the mirror has a radius curvature of 46 cm and produces an image of the coils 2.6m away from the mirror
A 3 meter long 200kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction.
The radius of the tires on your car is 0.33m. You drive 1400 m in a straight line. What is the angular displacement of a point on the outer rim of a tire, around the center of tire, during this trip? Suppose the tire rotates in the counter clockwise ..
A 4.47 m long pole stands vertically in a lake having a depth of 2.22 m. while the sun is 62.6 degrees above the horizon, find the length of the pole's shadow on the bottom of the lake.
A 100 Ohm resistor dissipates heat to its surroundings, isothermally. The resistor maintains a constant temperature of 300 K. What is the change in entropy of the resistor
A Cepheid variable has been found to have a period of 22 days, from this its luminosity is determined to be 2.8 x 1029 W, calculate the distance to the Cepheid
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