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A golf ball is hit on a 7.2m tall hill at 23m/s and 30° above the horizontal.
A) what is its velocity at the peak of its flight ?
B) what is its velocity when it lands? c) how far does it travel horizontally?
suppose light coming from the air strikes a rectangular slab of material with index of refraction 2.5 and incident angle 60 degree. At what angle from the normal will it leave the other side of the material?
What is velocity relative to the ice surface
he box is taken up a mountain where the air pressure outside the box is 8.00 104 Pa. The inside of the box is completely evacuated. Illustrate what is the magnitude of the force required to pull the lid off the box?
Calculate the energy in of a photon of radiation. A projectile is fired straight upward at 141 m/s. How fast is it moving at the the top of its trajectory? assume it is launched upward at 45 degrees about the horizontal plane. How fast is it moving..
Vector A, which is directed along an x axis, is to be added to vector Bvec , which has a magnitude of 3.0 m, with a magnitude that is 5 times that of A, What is the magnitude of A
If the car had been going 10m/s but had stopped in the same d = 167m distance, what would its acceleration have been.
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays produced in this lamp.
Three point charges are located on the x-axis. The first charge, q1= 10uC, is at x= -1.00m; the second charge, q2 = 20.0 uC,, Find the force that each charge is subjected
To demonstrate the tremendous acceleration of a top fuel drag racer, you attempt to run your car into the back of a dragster that is "burning out" at red light before the start of a race. (Burning out means spinning the tires at high speed to heat..
A 81.0-kg daredevil exhibitionist hangs on to the end of a long bungee cord attached to the railing of the Brooklyn Bridge and oscillates vertically, What is the frequency of oscillation
A heat engine operates in a Carnot cycle between 82.0°C and 345°C. It absorbs 20,000 J of energy per cycle from the hot reservoir, What is the mechanical power output of this engine
Explain how does that compare with the heat needed to reaise the temp of the same mass of water through the same temp difference?
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