A car of mass 650 kg is moving at a speed of 0.7 m/s. A man pushes the car, increasing the speed to 2.2 m/s. How much work did the man do?

A brick is dropped from 100m up. Find it's impact velocity and air time.

5. For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope: You have an isotope with 23 protons and 29 neutrons.

True or false Sound waves do not require a medium in which to travel

Which of the following facts about electromagnetic radiation has made it possible for scientists to gather information about Venus' rocky surface? A. Ultraviolet rays have wavelengths that are too short to be seen with the unaided eye. B.

What does edwards mean when he says, "the bow of god's wrath is bent, and the arrow made ready on the string"? a. god is violent. b. god's wrath is misdirected. c. god is prepared to demonstrate his anger. d. god's anger will cause much pain.

As the amount of charge on two objects increases, the strength of the electrical force between the objects

Which of the two resistors dissipates the larger amount of power?

Three students derive the following equations in which x refers to distance traveled, v the speed, a the acceleration (m/s^2), and t the time, and the subscript (0) means a quantity at time t=0: a) x=vt^2 + 2at, b) x=v0t+1/2at^2, and c) x=v0t+2at^2.

Which is a use of fiber optics?

When a positively charged conductor touches a neutral conductor, the neutral conductor will: