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A hand bicycle pump should compress air from atmospheric pressure to the pressure inside the tire (usually 5 or 6 atmospheres). Please estimate the temperature of the air as it enters the tire.
as a 15000 kg jet plane lands on an aircraft carrier its tail hook snags a cable to slow it down. the cable is attached
tori has very poor physical fitness. she wants to begin to exercisebut she doesnt know where to start . write an
A helicopter is ascending vertically with a speed of 5.98. At a height of 149 above the Earth, a package is dropped from a window. How long till the package hits ground.
A28.0-kg block is initially at rest on a horizontal surface. A horizontal force of76.0N is required to set the block in motion, after which a horizontal force of57.0N is required to keep the block moving with constant speed.
A 35 N hand and forearm are held at a 45 degree angle to the vertically oriented humerus. how much force must be exerted by the forearm flexors to maintain this position
A crane lifts a steel sub (dens. 7.8 x 10^3 ) of mass 20,000 kg. What is the tension in the lifting cable
A certain pipe has resonant frequencies of 385 Hz, 495 Hz, and 605 Hz, with no other resonant frequencies between these values. How long is this pipe
an 845 kg dragster accelerates from rest to 100 km/h in 0.90seconds. what is the average force exerted on the car
A Federation starship ( 2.20×10^6kg ) uses its tractor beam to pull a shuttlecraft ( 2.20×10^4kg ) aboard from a distance of 12.0km away. The tractor beam exerts a constant force of 4.0×104N on the shuttlecraft. Both spacecraft are initially at..
a proton is initially at rest at a point where the potential is 471 v. some time later the proton is at a point where
A projectile is fired in such a way that its horizontal range is equal to 14 times its maximum height. What is the angle of projection
A 10000 kg empty railroad car moving at 3 m/s collides with a loaded railroad car weighing 196000 N and couples with it. What is the final velocity of the combined railroad cars
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