What was the bullet-s speed as it left the barrel
A rifle is aimed horizontally at a target 54 {rm m} away. The bullet hits the target 2.0 {rm cm} below the aim point.
A)What was the bullet's flight time?B)What was the bullet's speed as it left the barrel?
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A 30 g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. What is the momentum of the car?
A hiker shouts toward a vertical cliff 465 m away. The echo is heard 2.75 s later. (a) What is the speed of sound in air there? (b) The wavelength of the sound is 0.75 m. What is the frequency of the wave? (c) What is its period?
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A particle of mass m is constrained to move between two concentric impermeable spheres of radii r = a and r = b (a < b). There is no other potential. Calculate the ground state energy and the normalised ground state wavefunction.
A rifle is aimed horizontally at a target 54 {rm m} away. The bullet hits the target 2.0 {rm cm} below the aim point. What was the bullet's speed as it left the barrel?
A car drives around a curve with radius 390 m at a speed of 33 m/s. The road is not banked. The mass of the car is 1600 kg. (a) What is the frictional force on the car?
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How big a factory do you think composition of the workforce is in likelihood of producing a CEO?
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