A merry-go-round has a mass of 1415 kg and a radius of 6.4 m. How much net work (in J) is required to accelerate it from rest to a rotation rate of 1.00 revolution per 7.00 s? Assume it is a solid cylinder.

A 35-kg boy is riding an 18-kg bicycle down a path. The bicycle is moving at 11 m/s. Calculate the kinetic energy of the boy and the bicycle (rounding your answer to the nearest tenth).

Infrared rays have a shorter wavelength than Question 11 options: X-rays. ultraviolet rays. radio waves. gamma rays.

Which statements describe the motion of a planet according to Kepler's second law? Check all that apply. The speed of a planet varies as it moves in its orbit. The speed of a planet is constant as it moves in its orbit.

How does the direction of vibration of a longitudinal wave compare to its direction of motion?

A 160 kilogram cannon fires a 30 kilogram cannonball with a speed of 45 m/s at an angle of 30 degrees with the horizontal. In what direction and at what speed does the cannon recoil?

If an airplane flies at 364 km/h, how long will it take to get from New York to Washington DC (288 km) ? (If needed, round to the nearest thousandths and answer with unit 'h' for hours.)

If a bar magnet is broken into two pieces, each of the resulting pieces

Two passengers leave the airport at Kansas City, Missouri. One flies to Los Angeles, California, in 3.5 hr and the other flies in the opposite direction to New York City in 3.5 hr.

What is the term for the basic unit of electric current? The basic unit of electric current is the.

When a sailboat overtakes a powerboat, which vessel is the stand-on vessel?