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In a circus an elderly performer thrills the crowd by catching a canon ball shot at him. The cannon ball has a mass of 50.0 kg and its horizontal component of velocity is 9.50 m/s when the 65.0 kg performer catches it. If the performer is on nearly frictionless roller skates, what is his recoil velocity?
m/s
x = 2 + 3t - t^2, Where x is in meters and t is in seconds, Determine At the time is the object at rest
Assume the car is moving at 72 km/hr when the brake pedal is applied. Assume that the radius of the wheel is 15 cm. What is the maximum power.
If a 12 V battery is used to charge this capacitor, what is the total charge stored what is the magnitude of the electric field between the plates what is the energy stored on the capacitor
A 0.658-nm photon collides with a stationary electron. After the collision, Find the momentum of the electron
Suppose that when you ride on your 7.60kg bike the weight of you and the bike is supported equally by the two tires. What is your weight
A 28.0kg child plays on a swing having support ropes that are 2.10m long. How fast will she be moving at the bottom of the swing
A plastic bag is filled with hydrogen at atmospheric pressure and 20.0 oC. Assume that the mass of the bag is negligible, How large a volume of hydrogen (in m3) is required
Supply a small island (population of 1 million, some industry, some military) with electrical power. How many power plants would you need
what is the combined mass of the dog and basket.
A 190? resistor is connected to an AC source withE0 = 14V. What is the peak current through the resistor if the emf frequency is 100 Hz
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
A man drags a 74.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
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