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A hockey puck slides off the edge of a table at point A with an initial velocity of 20.0 m/s and experiences no air resistance. The height of the tabletop above the ground is 2.00 m.
(a) What is the speed (not the velocity) of the puck just before it touches the ground?
(b) What is the distance between point A and the point where the puck hits the ground?
Two narrow, parallel slits separated by 0.200 mm are illuminated by green light (? = 546.1 nm). Calculate the distance between the first and second dark bands
What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 ^circC? Suppose that the air bubble is always in thermal equilibrium with the surrounding water.
A person pushes with a force of 10.0 N on a stick pin to try to push it into a bulletin board. find the average pressure (in Pascals) on the board at the tip of the pin
For the third circuit, consisting of a single battery and two light bulbs in parallel, how does the brightness of the bulbs compare to the first circuit, What is the current through each bulb
A rifle with a barrel length of 57 fires an 11 bullet with a horizontal speed of 440. The bullet strikes a block of wood and penetrates to a depth of 12. What resistive force (assumed to be constant) does the wood exert on bullet.
A wooden raft has a mass of 65 kg. When empty it floats in water (density 1000 kg/m3) with 41percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
What is the speed of the large cart after the impact.
Calculate the acceleration of the arrow in the bow.
A tuning fork has a frequency of 128 Hz, what is the period of the tuning fork
An aircraft weighing 803 N is accelerated at 10 m/s2 for 9 seconds, at which time the aircraft launches. How much work was done on the aircraft
A 22.5 g bullet is fired from a rifle. It takes 2.60 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
Suppose an initial speed of 21.4 m/s, at an angle of 61.10° with respect to the positive x axis. Find the velocity at time t0; enter x component, after that the y component.
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