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A woman once survived a fall of over six miles without a parachute when her plane exploded. Suppose a hapless individual is falling from a height of 3 miles and 624 yards. What is this distance in meters?
An object is dropped from the top of a tower at a height of 44.1 m. How much time does the object take to reach the ground
A block "A" of mass 3 kg on the table is connected to another block "B" of mass 2 kg hanging beneath by a string of negligible mass which passes through the hole. Calculate the unknown angular speed
Two wheels have the same mass and radius of 4.5 kg and 0.39 m, respectively. determine the net external torque that acts on each wheel
The intensity of sunlight reaching the earth is 1360 W/m^2, What is the power output of the sun
A room with dimensions 10 x 10 x 20 meters is filled with air at 20 degrees C, 101 kPa and relative humidity 0.8. What is the mass of water vapor in the room, in units of kg
a jet engine suspended beneath the wing of an airplane. The weight of the engine is 11800 N, find the magnitude of the torque due to the weight
A heat engine in each cycle extracts 50,000 Btu of thermal energy and rejects (or releases) 20,000 BtU of thermal energy. How many Btu of work is done each cycle
A 8000-kg car is traveling at 1.7 m/s along a horizontal road when the brakes are applied. How much kinetic energy does the car lose
a 250-kg motorcycle goes around an unbanked turn of radius 13.7m at a steady 96.5 km/h. What is the magnitude of the net force on the motorcycle?
A cylinder with a piston contains 0.250 mol of oxygen at 240000 pascal and 355 kelvin. The oxygen may be treated as an ideal gas. The gas first expands isobarically to twice its its original volume. It is y then compressed isothermally back to its..
The diffusion constant for the alcohol ethanol in water is 1.24 10-9 m2/s. A cylinder has a cross-sectional area of 3.95 cm2 and a length of 2.02 cm. what mass of ethanol diffuses through the cylinder
An engine does 17200 J of work and rejects 6470 J of heat into a cold reservoir whose temperature is 272 K
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