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A bullet is fired from at a shooting range. The bullet hits the ground after 0.32 s. Find how far did it travel horizontally and vertically in this time if it was fired at a velocity of 1100 m/s?
Pushing on the pump of a soap dispenser compresses a small spring. When the spring is compressed 0.50 cm, its potential energy is 0.0025 J.
If you start with two sinusoidal waves of the same amplitude traveling in phase on a string and then somehow phase-shift one of them by 12.50 wavelengths
A motorist drives south at 22.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 3.00 min, Find the total vector displacement and south west
Show that the density of an ideal gas occupying a volume V isgiven by ρ = PM/RT, where M is the molar mass. Show this bycalculating the following three quantities in terms of M, P, n, R,and T. Determine the density of oxygen gas at atmospheric pres..
A +5.0?C charge experiences a 0.47-N force in the positive y direction. If this charge is replaced with a - 2.7{\rm{ - }}\mu {\rm{C}} charge, find the magnitude of the force in this case
Water is well mixed in a 1m3 vessel. A stirrer introduces 300W of power into the vessel. determine what is the temperature of the outlet liquid
Suppose your body was able to use the chemical energy in gasoline. How far could you pedal a bicycle at 15 km/hr on the energy in 2.0 gal of gas? ( 1 gal of gas has a mass of 3.2 kg )
A 2.50 ml syringe with an inner diameter of 5.00 mm, a needle innerdiameter of 0.210 mm, What's the minimum force required to press down on the pad
The sound level measured 5.2 m away from a jet engine is 140 dB. What is the intensity of the sound at 5.2 m? What is the power transmitted by the sound waves? At what distance is the sound level exactly half?
N bricks, each having height h and mass m, are lying on the floor in a configuration of minimal potential energy. Find the minimum energy required to put all bricks one on top of another
A 500 kg elevator starts from rest. It moves upward for 2.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
A 1920 kilogram car accelerates uniformly from rest to 12.1 m/s in 2.58 second. Determine the work done on the car in this time
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