Net horizontal force exerted on the chile
A child sitting 1.10m from the center of a merry-go-round moves with a speed of 1.25m/s. calculate the centripetal acceleration of the child, and the net horizontal force exerted on the chile (mass=25.0kg)
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A water-skier is moving at a speed of 14.2 m/s. When she skis in the same direction as a traveling wave, she springs upward every 0.820 s because of the wave crests. When she skis in the direction opposite to that in which the wave moves, she spri
Mars has mass of 6.4 * 10 ^ 26 g and a radius of 3400 km. Phobos has a mass of 1.1 *10 ^19 g and radius of 11 km. Phobos orbits mars with a semimajor axis of 9380 km. What is the mean denisit of Mars and Phoos in g/ cm^3?
The current is a matter of concern to those who live nearby. (a) What is the strength of the field at ground level below one such wire?
What is the angular acceleration of the merry-go-round?(c) How much work does each child do?(d) What is the kinetic energy of the merry-go-round?
If the electron just misses the upper plate as it emerges from the field, find the speed of the electron as it emerges from the field?
A long solenoid has 1460 turns in a length of 40.0 cm. What current has to flow through the solenoid in order to generate a magnetic field of 3.45 μT in its interior?
A jetliner, traveling northward, is landing with a speed of 62.0 m/s. Once the jet touches down, it has 656 m of runway in which to reduce its speed to 11.6 m/s. Compute the average acceleration (magnitude and direction) of the plane during landin
The mass of a carbon atom is 2.0x10^-26. What is the kinetic energy of a carbon atom moving with a speed of 500 m/s?
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