A 20 kilogram ball rolls down a 10 meter ramp at the rate of 15 meters per second. The kinetic energy is joules

Non examples of a wave

Which one of the following choices best describes an advantage of isometric exercise? A. Rapid strength improvement B. Improved strength across the entire range of motion C. Improved joint flexibility D. Motivational

Which condition in a nebula would prevent nuclear fusion? A) the presence of nitrogen and carbon B) a decrease in the overall volume of gases C) a core temperature of only ten thousand Kelvin D) Physical contact between bare nuclei

Lulu gets a flat tire on her way to school. She gets out and attempts to push the car. For 60 minutes, she pushes and pushes but the car never moves. How much work did Lulu perform as she unsuccessfully tried to move the car?

Name 4 branches of biological science

A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. If a pump with a radius of 0.120 m starts from rest and accelerates at 30.

Which describes a property shared by ultraviolet light and X-rays? A They are both transverse waves. B They share the same wavelength. C They contain less energy than visible light. D They both require a medium to travel through.

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates