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A 40-N crate starting at rest slides down a rough 6.0-M long ramp, inclined at 25 degrees with the horizontal. 30J of energy is lost to friction. What will be the speed of the crate at the bottom of the incline?
Suppose you throw a 0.058-kg ball with a speed of 10.9 m/s and at an angle of 30.9° above the horizontal from a building 10.8 m high. What will be its speed when it hits the ground
after leaving the end of a ski ramp a ski jumper lands downhill at a point that is displaced 60.4 m horizontally from
A supertanker (mass 1.70 x 10^8 kg) is moving with a constant velocity. Its engines generate a forward thrust of 7.40 X 10^5 N. Determine a) the magnitude of the resistive force exerted on the tanker by water and b) the magnitude of the upward buoyan..
When a pendulum with a period of 2.00000 s is moved to a new location from one where the acceleration of gravity was 9.80 m/s2, By how much does the acceleration of gravity differ
The hot-water needs of a household are met by a 75-L electric water heater whose heaters are rated at 1.6 KW. The hot water tank is initially full with cold water at 20C at a rate of .078kg/s. After a shower period of 12 min, the water temperature..
You pull your 18-kg suitcase at constant speed on a horizontalfloor by exerting a 43-N force on the handle, What is the normal force on the suitcase
A research balloon bound for the stratosphere is filled at sea level with 800 m3 of helium whose initial temperature is 285 K. What is the temperature of the helium
A uniformly charged ring is 1.0 cm in radius. The electric field on the axis 3.5 cm from the center of the ring has magnitude 2.5MN/C
a car at the indianapolis-500 accelerates uniformly from the pit area going from rest to 295 kmh in a semicircular arc
q. 1 a 1600 car travelling at 20 suddenly runs out of gas while approaching the valley that looks like an inverted
A projectile is launched straight up at 59 m/s from a height of 73 m, at the edge of a sheer cliff. The projectile falls, just missing the cliff and hitting the ground below.
A neutral conductor completely encloses a hole inside of it. you observe that the outer surface of this conductor carries a charge of -12 microC. A) can you conclude that there is a charge inside the hole? b) how much charge is on the inner surfac..
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