Gravity can be described as

a. the force that moves electric charges

b. the force of attraction between two objects

c. the force that repels objects with like charges

d. an magnet force found in nature

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