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You are standing on a platform and you throw a 5kg ball horizontally with a speed of 10m/s. You release the ball at a height of 5 meters above the ground.
a. Sketch the situation, including the path of the ball until it hits the ground.
b. Find the time it takes the ball to hit the ground.
c. Find the horizontal distance the ball travels before it hits the ground.
A factory worker pushes a 34.0 kg crate a distance of 3.7 m along a level floor at constant velocity by pushing horizontally on it, How much work is done on the crate by the normal force
A man begins pushing a box from rest up a ramp angled at 22 degrees from horizontal, exerting a constant force of 500N, with what average force will it hit the ground
An unknown mass is placed on one side of the Atwood's machine. The downward acceleration of the mass 5kg is observed to be exactly one-half of the acceleration due to gravity. determine the tension force and the unknown mass
A person throws a 1/2 kg brick out the window. What would be the resultant velocity of the wagon
You can ignore air resistance. Explain how far from the point of firing does the other fragment strike if the terrain is level?
A fire hose must be able to shoot a stream of water a specified height, straight up. Calculate the gauge pressure (difference between actual pressure
A Styrofoam box has a surface area of 0.83 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, determine the thermal conductivity of the Styrofoam.
Using the capacitance determined in part (a), calculate the current in the circuit 7.4 ms after the switch is closed. Suppose that the capacitor is uncharged initially and that the emf of the battery is 9.0 V
Reading glasses of what power are needed for a person whose near point is 110cm, so that he can read a computer screen at 52cm? suppose a lens-eye distance of 2cm.
A 22.5-microF capacitor is charged by a 147.0-V power supply, Calculate the energy stored in the inductor at t = 1.30 ms
Four long wires are kept on each corner of a square of side 58cm and the current of 22A flows throgh them in the direction, Find the magnitude of the net force on the wire
A rotating wheel requires 3.03-s to rotate through 37.0 revolutions. Its angular speed at the end of the 3.03-s interval is 99.0 rad/s
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