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A toy cannon uses a spring to project a 5.28 g soft rubber ball. The spring is originally compressed by 5.06 cm and has a force constant of 8.08 N/m. When the cannon is fired, the ball moves 15.0 cm through the horizontal barrel of the cannon, and there is a constant frictional force of 0.0322 N between the barrel and the ball.
(a) With what speed does the projectile leave the barrel of the cannon?
(b) At what point does the ball have maximum speed?
(c) What is this maximum speed?
A lightbulb has a resistance of 13? and consumes 9.4W of power; the rod is 1.33m long and moves to the left with a constant speed. what is the speed of the rod
Two straight wires run parallel to each other, each carrying a current in the direction shown below. The two wires experience a force in which direction? B) What happens when one of the currents is turned off?
A 2.0-kg object is attached to a spring (k=55.6 N/m) that hangs vertically from the ceiling. obtain the magnitude of the maximum acceleration of the object
An empty 13461 kg coal car is coasting on a level track at 6.7 m/s. Suddenly 4761 kg of coal is dumped into it from a chute directly above it. Find the final speed of the car
A military helicopter on a training mission is flying horizontally at a speed of 60.0 m/s and accidentally drops a bomb, How far does it travel horizontally while falling
A net force of 19 newtons is applied horizontally to a 10. kilogram block resting on a table. What is the magnitude of the acceleration of the block
A student is ice fishing in Colorado on a frozen lake over spring break. He cuts a circular hole in the ice that has a diameter of 0.50 m. Find the mass of the ice cut out to make the hole
if you throw a ball upward with an initial speed of 4m/s at 1.5 above the ground, find the final velocity just before touching the ground
A body of mass M is initially at rest, Find the expression for the instantaneous power delivered to the body as a function of time
An empty parallel plate capacitor is connected between the terminals of a 9.44-V battery and charges up. what is the new voltage between the plates of the capacitor
If the mass of the diver is 84 kg and the board is 1.5 m long, illustrate what is the magnitude of the torque due to gravity on the diving board with a pivot point at the fixed end of the board?
Calculate the threshold frequency and wavelength for photoelectric effect from magnesium
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