In a motor, electrical current enters through the brushes.

a. True

b. False

What type of boundary occurs where two plates move together causing one plae to descend in the mantle beneath the other plate

A 20-kg object sitting at rest is struck elastically in a head-on collision with a 10-kg object initially moving at + 3.0 m/s. find the final velocity of the 20 kg object after the collision.

A person standing at the edge of a merry-go-round must hold on tightly to keep from flying off the edge as it speeds up. What name is given to the force that keeps the person moving in a circular path?

nina says to check subtraction add thee difference to the number you subtracted from. does the statement make sense? explain

A runner drank a lot of water during a race. What is the expected path of the extra filtered water molecules?

A comet is cruising through the solar system at a speed of 50000 kilometers per hour for 4 hours time. What is the total distance traveled by the comet during this time in kilometers, miles, and light years?

A gas in a closed container is heated with 12J of energy, causing the lid of the container to rise 3m with 5N of force. What is the total change in energy?

What are illuminated objects?

During one year a population of blue jays has zero population growth. which must be true about the blue jay population at the end of the year compared to the beginning of the year?

Given the two sets, which statement is true? A = {1, 2} B = {1, 2, 3, 4}