By how much does the rocket clear the top of the wall
A rocket is fired at a speed of 75.0 m s from ground level at an angle of 60 degrees above the horizontal, the rocket is fired toward an 11 m high wall located 27 m away by how much does the rocket clear the top of the wall?
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A 30.0 kg packing case is initially at rest on the floor of a 1500 kg pickup truck. The coefficient of static friction between the case and the truck floor is 0.30 and the coefficient of kinetic friction is 0.20. Before each acceleration given bel
A 106 kg chesterfield is pushed up a frictionless ramp at a constant speed by a delivery person. If the ramp is inclined at 28.3° to the horizontal, what horizontal force must the delivery person apply to the chesterfield?
A child slides down a slide with a 27° incline, and at the bottom her speed is precisely two-thirds what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.
In this same time, what is the vertical displacement of the electron? Treat up as positive.
Cathode-ray tubes (CRTs) are often found in oscilloscopes and computer monitors. In the figure an electron with an initial speed of 6.60×10^6 is projected along the axis midway between the deflection plates of a cathode-ray tube. The uniform
Two cars are initially 279km apart and traveling toward each other on a straight stretch of freeway. One car is moving a 38 m/s and the other is moving at 75 m/s. In how many seconds will they pass each other?
A loudspeaker of mass 21.0 is suspended a distance of = 1.40 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 3.9
A 100 kg block attached to an ideal pulley with a block of unknown mass on the other end takes 8.5 secs to reach the floor after being released from rest. It falls 1m. What is the mass ofthe unknown block?
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