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You're 6.0 m from one wall of a house. You want to toss a ball to your friend who is 6.0 m from the opposite wall. The throw and catch each occur 1.0 m above the ground. (Figure 1) Assume the overhang of the roof is negligible, so that you may assume the edge of the roof is 6.0 m from you and 6.0 m from your friend.
a.) What minimum speed will allow the ball to clear the roof?
b.) At what angle should you toss the ball?
A baseball outfielder throws a 0.150 kg baseball at a speed of 39.0 m/s and an initial angle of 33.0°. What is the kinetic energy of the baseball at the highest point of its trajectory.
A mini-fridge needs to maintain a temperature of 277 K. The air outside the mini-fridge has a temperature of 292 K. What is the power output (that is, the work done per second) of the compressor in the mini-fridge
In this problem you will consider the balance of thermal energy radiated and absorbed by a person. Find the net power radiated by the person when in a room with temperature . Express the net radiated power numerically, to the nearest 10 W
Calculate the firm's earnings per share (EPS). Explain how large a per-share cash dividend did the firm pay on common stock during 2011?
A cylindrical bucket, open at the top, is 29.0cm high and 12.0cm in diameter. How High will the water in the bucket rise
A helicopter rises vertically with a constant upward acceleration of 0.38 m/s^2 . As it passes an altitude of 20m , a wrench slips out the door. How soon does the wrench hit the ground? At what speed does the wrench hit the ground?
If the PEL, PERSONAL EXPOSURE LIMIT for a substance is 500 ppm., the SAE is 0.10 for the sampling method, what is the lower confidence limit test results
A certain heat engine does 10.2 kJ of work and 9.5 kJ of heat is transfered to the environment in a cyclical process. What was the heat transfer into this engine
You need to prepare a 0.187mm-diameter tungsten wire with a resistance of 3.43 ohm. How long must the wire be
Calculate the angular velocity of an electron orbiting a proton in the hydrogen atom, given the radius of the orbit is 0.500x10-10 m
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 9.00×10?11mm of Hg. What is the mean free path of a molecule
In a typical game of squash, two people hit a soft rubber ball at a wall until they are about to drop due to dehydration and exhaustion.
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