What is the kinetic energy of an object that has mass of 30 kilograms and move with a velocity of 20 m/s

What is the wavelength of an earthquake wave if it has a speed of 11 km/s and a frequency of 14 Hz?

How are airbags tested?

A 700k/g race car slowed down from 30m/s to 15m/s what is the impulse and what was the average force applied by the brakes

The specific heat of silver is 0.057 calories/gram°C. If 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°C, how many calories of heat energy were absorbed by the sample?

Which is the correct scientific notation of the number 0.000681? 68.1 * 10-4 6.81 * 104 6.81 * 10-4 6.81 * 10-5 68.1 * 104

How much heat is needed to raise the temperature of 6g of water by 18oC?

A proposed space station includes living quarters in a circular ring 50.0 m in diameter. At what angular speed should the ring rotate so the occupants feel that they have the same weight as they do on Earth?

Which transformation of energy occurs in a hydroelectric power plant? A. Potential energy to chemical energy B. Chemical energy to potential energy C. Chemical energy to Kinetic energy D. Kinetic energy to electrical energy F.

Which two supreme court cases delt with the first amendment rights of students in public schools

Two boxes sit on a frictionless surface and are in contact with one another. the first box has a mass of 7 kg and the second box has a mass of 8 kg. A 25 N force is applied to the 7 kg box. Find the acceleration of the boxes.