The elevator of a large building is to raise a net mass of 400 kg at a constant speed of 12 m/s using an electric motor. minimum power rating of the motor should be

What is the meaning of viscosity?

Which is the most accurate description of compounds? O A) They are not pure substances. OB) They are made of only 1 type of atom. OC) They are the basic building blocks of matter.

What word means what scientists do that is the basis for their investigation

A horse has a kinetic energy of 29,400 j if the horse has a mass of 300 kg what is the horses speed?

A ball has 116.62 J of gravitational potential energy at a height of 85 m. What is the mass of the ball?

Which pharaoh ordered the use of millions of man hours and extraordinary resources to create the Great Pyramid at Giza? A) Amenhotep B) Khufu C) Menes D) Tutankhamen

5. The group number of the carbon family is: a. 1 b. 2 C. 3 d. 4

Which particles have the strongest attraction between them: the particles of a gas, the particles of a liquid, or the particles of a solid?

A skydiver falls toward the ground at a constant velocity. Which statement best applies Newton's laws of motion to explain the skydiver's motion?

Which of the following statements is/are true? Check all that apply. Check all that apply. The work done by a conservative force depends on the path taken. A potential energy function can be specified for a conservative force.