A switch can

A) stop the flow of current.

B) cause current to flow in the opposite direction.

C) increase voltage.

D) store energy.

E) start the flow of current.

How many revolutions will a car wheel of diameter 18 in. make as the car travels a distance of one mile? (Round your answer to the nearest whole number.) Incorrect: Your answer is incorrect. revolutions

If a full moon occurs on January 1st, what will the moon phase be on January 8th?

Which data set has the smallest standard deviation? A. 1,6,19,20,85,29,0 B. 22,22,23,23,22,22,23 C. 6, 7, 6, 7, 1004, 980, 350 D. 99, 199, 299, 55, 44,33, 22

A machine performs 90 J of work in lifting an object. It requires 120 J of work do lift it. How much heat is created by the machine?

To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its a. wavelength. b. intensity. c. refraction. d. amplitude.

Power=170 watts time=20 seconds

What is the charge of alpha, beta and gamma rays?

A pair of scissors is a complex machine. what simple machines make up a pair of scissors?

Methane gas absorbs red light, and methane clouds reflect blue light, giving Uranus and Neptune their distinctive blue colors. Why do Uranus and Neptune have methane clouds, but Jupiter and Saturn do not

A car traveled 1025 kilometers from El Paso to Dallas in 13.5 hours. What was it's average velocity?