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A 4.0-kg block slides down an inclined plane that makes an angle of 31° with the horizontal. Starting from rest, the block slides a distance of 2.5 m in 4.8 s. Find the coefficient of kinetic friction between the block and plane.
You dip your finger into a pan of water twice each second,producing waves with crest that are separated by 0.11 m. Determine the frequency of these waves
When a 111 dB sound wave comes through an open window of area 0.510 m2, how much acoustic energy passes through the window in a 10.3 min interval
A merry-go-round (I= 500 kg m^2) of radius R = 2 meters is rotating about a frictionless pivot, making one revolution every 5 seconds. Find the new angular speed of the merry-go-round
Suppose two parallel-plate capacitors have the same charge q, but the area of capacitor 1 is A and the area of capacitor 2 is 2A. what is the voltage across capacitor 2?
An aluminum can is filled to the brim with a liquid. The can and the liquid are heated thus their temperatures change by the equal amount. Estimate the coefficient of volume expansion of the liquid
A golfer hits a shot to a green that is elevated 3.30 m above the point where the ball is struck. find the speed of the ball just before it lands
Considering Yukawa's hypothesis that the nuclear force should be due to the exchange of massive particles (that he called mesons), calculate the expected mass of this hypothetical meson.
Glavin and nicole are running in the bluenose marathon. Glavin stops for a rest when nicole passes him. How long does it take for glavin to catch nicole
A horizontal beam of electrons initially moving at 4.0x10^7 m/s is deflected vertically by the vertical electric feild between oppositely charged parallel plates
At a shooting competition, a contestant fires and a 13.0 bullet leaves the rifle with a muzzle speed of 130. what is the magnitude of the impulse on the target
The Milky Way has a diameter (proper length) of about 1.2x105 light-years. According to an astronaut, how many years would it take to cross the Milky Way if the speed of the spacecraft is 0.890 c?
A monster is 8 meter in front of a convex mirror and appears with a magnification of 0.63. Evaluate the radius of curvature of the mirror
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