An object that is acceleration can be described as a(n) force. gravity
unbalanced
balanced
physical

Which is the best example of an unbalanced force?

A book resting on a shelf.
A train accelerating away from a station.
A chair sitting motionless.
A car driving at a constant speed.

Which direction will the barrel travel when the farmer applies a downward unbalanced force on the pulley?
up
down
left
no movement

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.