You start to roll backwards down a hill on your bike, so you use the brakes to stop your motion. In what direction did you accelerate?

A floating boat has a weight of 100 N. What is the buoyant force on the boat?

A pond is a small body of water that is too shallow for sunlight to permeate, and a lake is a large body of water that is deep enough for sunlight to permeate

A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 5.64 10-2 kg/s. the density of the gasoline is 735 kg/m3, and the radius of the fuel line is 3.43 10-3 m.

The energy obtained by an object when it gains or loses electrons is what?

20-kilogram canoe is floating downriver at 2 m/s. what's the kinetic energy?

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band

How would you explain photosynthesis to a new student in class

If the abosolute of a gas is 600 k, the temperature in degrees Celsius is

How does an electromagnetic wave propagate itself? a. A changing magnetic field induces an electric field perpendicular to the magnetic field. b. A changing electric field induces a magnetic field perpendicular to the electric field. c.

Which of the following is an example of convection? A. hot air rising and cooler air falling B. a hot object transferring heat to a cooler one C. a hot oven warming the air around it D. the rays of the Sun warming the earth