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A solid bowling ball with a radius of 10.9 cm and a mass of 7.4 kg rolls along a bowling alley at a linear speed of 4.4 m/s.
What is its translational kinetic energy?
What is its rotational kinetic energy?
The sun produces its power from the conversion of mass into energy by Einstein's equation E=mc2 where c=3x10^8 mls. the sun's intensity on the earth is 1346W/m^2, find the rate at which mass is being converted to energy in the sun
Find the maximum displacement of the 100,000 kg sace station if the astronaut's motion has an amplitude of 0.100 m.
A crate of potatoes of mass 12.0 kg is on a ramp with angle of incline 30° to the horizontal, Find the frictional force (magnitude and direction) on the crate if the crate is sliding down the ramp
Find out the average magnitude of the induced emf if the change in shape occurs in 4.24 {rm s} and the local 0.120-{rm T} magnetic field is perpendicular to the plane of the loop.
The component of the external magnetic field along the central axis of a 69-turn coil of radius 23.0 cm decreases from 1.90 T to 0.400 T in 1.70 s. what is the magnitude of the induced current in the coil
What is the amplitude of the oscillations . Could you think of a simple method for determining the focal length of a converging lens.
A single circular loop piece of copper wire has a radius (r) of 12 cm. What is the average electrical energy dissipated in the resistance of the wire
A severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 33km2. What mass of water (in kg) fell on town? One cubic meter of water has a mass of 103kg.
A 3.67 g bullet is fired vertically into a 1.61 kg block of wood. The bullet gets stuck in the block, What was the initial velocity of the bullet
In a dentist's office, an X-ray of a tooth is taken using X-rays that have a frequency of 8.07 multiply.gif 1018 Hz
According to the equipartition theorem , the average energy of any degree of freedom is 1/2 kT, Estimate the root mean square speed of a helium atom at 15 degrees celcius
An object sits on a wheel 0.30 m from its axle. The wheel's rotational speed decreases from 4.0 rad/s to 2.0 rad/s in 5.0 s. determine the wheel's average rotational acceleration
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