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A rifle with a weight of 20 N fires a 3.0 g bullet with a speed of 260 m/s.
(a) Find the recoil speed of the rifle.
m/s
(b) If a 700 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle.
The unit of horsepower was defined by considering the power output of a typical horse. What power does this represent in hp
A small block with a mass of 0.120kg is attached to a cord passing through a hole in a frictionless, horizontal surface. The block is originally revolving at a distance of 0.50 m from the hole with a speed of 0.70m/s. The cord is then pulled from ..
Water ripples are produced by making a cork oscillate up and down at a frequency of 5 Hz. What is the PERIOD of the water ripples
A generating station is producing 2.00 106 W of power that is to be sent to a small town located 8.0 km away. Find the power used to heat the wires if the power is transmitted at 1300 V
A pressurized cylindrical tank, 5.0 m in diameter, contains water which emerges from the pipe at point C, find The mass flow rate in the pipe
A spinning flywheel has rotational inertia I = 401.0 kg · m2. Its angular velocity decreases from 20.4 rad/s to zero in 261.6 s due to friction
At what height above the surface of the earth does the balloon have a speed of 7-m/s.
Hooke's law describes a certain light spring of unstretched length 33.0 cm. When one end is attached to the top of a doorframe and a 7.31 kg object is hung from the other end, the length of the spring is 42.0 cm.
The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6 10-8 s. What is the average distance it travels before decaying
A sledge loaded with bricks has a total mass of 17.0 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. How much work is done by the rope on the sledge
Illustrate what minimum speed will allow the ball to clear the roof?at what angle should the ball be tossed. (in picture at roof starts at 3m and the angle of the roof there is 45degrees
In refraction the angle of refraction depends on the wavelength, longer wavelengths bend less. How does the wavelength affect the angle of reflection
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