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A particle of 8 kg with a veloctiy of 40 m/s hits a 40 kg particle that is at rest. The collision is elastic. What are the final velocities of the particles?
Two forces, F? 1 and F? 2, act at a point. F? 1 has a magnitude of 8.20N and is directed at an angle of 62.0?, below the negative xaxis in the third quadrant What is the x component of the resultant force
A 62 kg student is standing atop a spring in an elevator that is accelerating upward at 3.3 m/s^2, By how much is the spring compressed
The space shuttle is in a 400km - high circular orbit. It needs to reach a 700 km -high circular orbit to catch the Hubble Space Telescope for repairs. how much energy is required to boost it to the new orbit
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. Find the power consumed by the air filter.
Two freight cars, each with a mass of 2.4 multiplied by 105 kg, collide and stick together. One was at first moving at 3.4 m/s and the other was at rest. What is their final speed.
The rms current in a solenoid is 0.036 A when the solenoid is connected to a 18 kHz generator. What is the peak voltage of the generator
A 0.30 kg mass is suspended on a string. In equilibrium the mass stretches the spring 2.0 cm downward. Calculate the total energy of the system
Two identical diverging lenses are separated by 16 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right
A dockworker loading crates on a ship finds that a 18-kg crate, initially at rest on a horizontal surface, Find the coefficients of static and kinetic friction between crate and floor
Four protons and four electrons are located inside a pyramid and are separate from each other, What is the net value of electric flux through the surface of the pyramid
To fight a fire on the fourth floor of a building, firefighters want to use a hose of diameter 6.31cm to shoot 925 liters/minute of water to a height of 11m, What pressure must the water have inside the hose
Eight books, each 3.90 cm thick with mass 1.70 kg, lie flat on a table. How much work is required to stack them on top of each other.
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