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A 0.5-kg ball is loaded into a popgun. The ball is loaded with compressing a spring 0.1 m. The spring is initially not compressed, then, as it is compressed, the force increases up to a maximum of 10 N. The gun is then fired. What is the speed (in m/s) of the ball because it leaves the gun?
An object of mass 3.00 kg, moving with an initial velocity of 5.00i m/s, collides with and sticks to an object of mass 2.00 kg with an initial velocity of ?3.00j m/s
A wire loop of radius 0.50 m lies so that an external magnetic field of magnitude 0.30 T is perpendicular to the loop. The field reverses its direction, and its magnitude changes to 0.20 T in 2.0 s. Find the magnitude of the average induced emf in th..
If a 0.20 kg ball falling with a velocity of 3.0 m/s makes a perfectly elastic collision with the floor, how much impulse will the floor place on the ball during the collision
A railroad car of mass 2.50 * 10^4 kg is moving with a speedof 4.00 m/s. It collides and couples with three other railroadcars, what is the speed of four cars immediately after the collision
The speed of the vaccine (p=1100 kg/m3) is held in a reservoirwhere a high pressure pushes it out. Find the speed at which the vaccine emerges
Find out the position at which a third charge can be placed.
A slinky has a mass of 0.28 kg and negligible length. When it is stretched 1.2 m, it is found that transverse waves travel the length of the slinky in 0.68 s. What is the force constant, k, of the slinky
Your sofa won't fit through the door of your new sixth-floor apartment, so you use a 1.08kW motor to lift the 84.4kg sofa 15.6m from the street. How much time does the lift take
A physics lab demonstrates the principles of simple harmonic motion (SHM) by using a spring affixed to a horizontal support. The student is asked to find the spring constant, k. After suspending a mass of 335.0 g from the spring, the student notic..
What is the temperature of the outside air. What are the components of the displacement vector from camp to summit? What is its magnitude? select the x axis east, y axis north, and z axis up.
a tow truck is pulling a car out of a ditch by means of a steel cable y 2.0 x 1011 nm2 that is 8.87 m long and has a
A light bulb has a resistance of 280 ?. It is connected to a standard wall socket (120 V rms, 60.0 Hz).Determine the current in the bulb
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