It took 3.3 s for a student to move a 6.4 N chair a distance of 10.7 m. How much power did she use?

What is faster? The speed of light or the absence of light?

An athlete whose mass is 97.0 kg kg is performing weight-lifting exercises. Starting from the rest position, he lifts, with constant acceleration, a barbell that weighs 420 N N. He lifts the barbell a distance of 0.65 m m in a time of 1.5 s s.

If you go outside on a hot summer day with a double scoop ice cream cone, how will the cold ice cream interact with the hot outside air?

Suppose you dropped the ball from a height of 2 meters and then watched it until it came to rest. What do you think would happen to the ball between the second it was dropped and the moment it comes to rest?

What has more gravity-Earth's moon or the Sun? Why?

A battery applies 45 volts to a circuit, while an ammeter reads 10 ma. later, the ammeter reading drops to 7 ma. assuming the resistance has not changed, the voltage must have

A 150-kg object takes 1.5 minutes to travel a 2,500 - meter straight path. It begins the trip traveling 120 m/s and decelerates to a velocity of 20 m/s. What is the acceleration?

Lava is rock that has undergone a physical change and has liquefied. What is known about this change?

At what temperature did the substance in the test tube into a solid?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical