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A rifle is aimed horizontally at a target 60 {\rm m} away. The bullet hits the target 2.0 {\rm cm} below the aim point.
Part1
What was the bullet's flight time? (Two sig figs in seconds)
Part2
What was the bullet's speed as it left the barrel? (Two sig figs in m/s)
Heat engines take input energy in the form of heat, use some of that energy to do work, and exhaust the remainder. Determine the magnitude of the heat the athlete gives off
A bicycle has wheels with a diameter of 0.680 meter. It accelerates uniformly and the rate of rotation of its wheels increases from 207 rpm to 270 rpm in a time of 22.7 second. Evaluate the linear acceleration of the bicycle
Two ropes are pulling upward on a large crate. The weight of the crate is 420. N. The tension in the left rope is the same as the tension in the right rope. If the crate is moving upward at a constant speed, what is the tension in the left rope?
For reference LWR: thermal efficiency is 33%, power 1150 MWe, 92% CF, uranium is $46/lb. U3O8, SWU is $114/kgSWU, conversion is $12/kgU, fabrication and transportation cost $295/kgU, losses in fabrication 0.12%
A solenoid is made by wrapping a wire so that it makes a solenoid (coil) having 500 turns of diameter 8.00 cm and length 40.0 cm. Find the inductance of this solenoid
a student m 97 kg runs at a velocity vi 2.85 ms before jumping on a skateboard. after jumping on the board the
A large fake cookie sliding on a horizontal surface is attached toone end of a horizontal spring with springconstant k = 420 N/m; the other endof the spring is fixed in place. The cookie has a kinetic energy of22.0 J as it passes through the sprin..
a 35 kg boy sits atop a sphere of frictionless ice of radius r=2.0m. He begins to slide and eventually falls off. How far above the ground does he lose contact with the ice
In a two slit interference pattern what is the ratio of slit separation to slit width if there are 17 bright fringes within the central diffraction envelope and the diffraction minima coincide by two slit interference maxima.
A hydraulic lift has pistons with areas 0.40m2 and 5.95m2 , and they're at the same height. how much mass can the larger piston support
a helium nucleus has radius rhe 1.9 fm mass m 6.6 times 10-27 kg and charge 2e. a gold nucleus has charge 87e and
A 120 kg cannon shoots a 0.5 kg ball with a velocity of 80.0 m/s. What is the recoil velocity of the cannon
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