An attractive force of 7.2 N occurs between two charges that are 0.20 m apart. If one charge is 4.0 μC, what is the other charge?

The only thing that distinguishes one light ray from another is its ...

The differential distribution of ions across the cell membrane is due to the: A. A lack of cell ATP B. Difference in permeability of the cell membrane to ions C. Resting membrane potential D. Na+-K+-ATPase pump

A mechanical wave generally does NOT A. move through a medium. B. move the medium from one place to another. C. move through solids. D. disturb the medium.

How much work can be done by a 50w motor in 5 sec?

Levi observed properties of four different waves and recorded observations about each one in his chart.

In the chemical reaction in which carbon, hydrogen and oxygen absorb heat and combine to form carbon dioxide and water which of the following is considered to be a reactant? A. heat B. water C. oxygen D. carbon dioxide

A box is at rest on a table. What can you say about the forces acting on the box? The upward ___ and the downward___ are balanced Applied force Frictional force Normal force Drag force Gravitational force Tension

When the sun warms the sidewalk on a hot sunny day, what type of energy conversion occurs?

Which statements about acceleration are true? Check all that apply. A. is the symbol used for acceleration. B. The SI units for acceleration are m/s. C. Acceleration is a scalar quantity. D. Acceleration is calculated with the equation.

What is the acceleration due to gravity on Mars? a. 9.8 m/s2 c. 12.2 m/s 2 b. 3.7 m/s2 d. 0.3 m/s2