Determine kinetic energy of the baseball-trajectory motion
A baseball outfielder throws a 0.150 kg baseball at a speed of 36.0 m/s and an initial angle of 33.0°. What is the kinetic energy of the baseball at the highest point of its trajectory?
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A 140 kg piano is being lifted at a steady speed from ground level straight up to an apartment 16.0 m above the ground. The crane that is doing the lifting produces a steady power of 400W. How much time does it take to lift the piano?
A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 158 km away. The radar antenna is pointing upward at an angle of 62.3° from the ground. Find the x and y components (in k
A spelunker (cave explorer) drops a stone from rest into a hole. The speed of sound is 343 m/s in air, and the sound of the stone striking the bottom is heard 2.34 s after the stone is dropped. How deep is the hole?
A ball is thrown downward with an initial speed of 25 m/s from the top of a 210 m tall building. At the same time another ball is thrown upward from ground level with a speed of 25 m/s At what distance from the bottom do the two balls pass each ot
A 75,600 spaceship comes in for a vertical landing. From an initial speed of 1.00 , it comes to rest in 2.00 with uniform acceleration. What braking force must its rockets provide? Ignore air resistance.
A cubical block of wood 10cm on a side floats at the interface between the oil and water with its lower surface 2cm below the interface. The density of the oil is 750kg/m3.(a) what is the gauge pressure at the upper face of the block? (b) what is
Explain, in detail, why the dust clings to the wheels. Be sure to describe forces by name and mention charging by induction, conducting, or rubbing, if it is appropriate. Also explain what atoms on Mars must be composed of.
Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.700 , and all of the copper is used. (a) What will be the length of the wire?
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