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A solid cylinder of radius 13 cm and mass 10 kg starts from rest and rolls without slipping a distance 6 m down a roof that is inclined at the angle 30 degrees. What is the angular speed of the cylinder about its center as it leaves the roof?
Two astronauts of equal mass 92 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 18 meters. What is the new angular velocity of the two astronauts
A pirate in a movie is carrying a chest (0.30 m X 0.30 m X 0.20 m) that is supposed to be filled with gold. To see how ridiculous this is, determine the weight (in newtons) of the gold. To judge how large this weight is, remember that 1 N = 0.22..
The temperature of human is normally 37.0 degree Celsius. (a) at what wavelength will a human radiate the maximum radiation? (b) estimate the total power radiated by a person of medium build(assume a cylindrical human of height 1.80 meters and rad..
What is the temperature of the gas at the new volume?
A car goes round a flat curve at a speed of 32 ms-1. If the radius of the curve is 200 m, find the minimum value for the coefficient of friction so that the car can go around the curve without skidding.
A hollow AISI 1045 steel shaft 5 in OD and 4 in ID transmits 180 hp at a speed of 240 rpm. The length of shaft subjected to the torque is 10 ft.
A baseball player pops a pitch straight up. The ball (mass 210g) was traveling horizontally at 36.0m/s just before contact with the bat, and 21.0m/s just after contact. Determine the magnitude of the impulse delivered to the ball
A He+ ion is placed in an excited state, so that its remaining electron occupies the n=5 state. The electron can make a transition to any lower energy state, thereby giving off a photon. What wavelengths of light would be given off in these transi..
Which statement correctly describes the bulb after the switch is closed? Assume the battery is ideal (it has no internal resistance) and the connecting wires have no resistance.
A 70 kg window cleaner uses a 20 kg ladder that is 5.4 mlong. He places one end on the ground 2.2m from a wall, What is the angle of this force on the ladder
If Argentinosaurus, a long-necked, gigantic sauropod, had a head height of 18 m and a heart height of 8.3 m, What was the blood pressure (in torr or mm Hg) at the feet
Calculate the momentum of a 2140 kg elephant charging a hunter at a speed of 7.49 m/s
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