A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on the pole, thus increasing the vertically upward contact force that the pole exerts on the fireman. When the force on his hands equals the downward gravitational force from the Earth on him, what happens to the fireman

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

As microwave light travels through a liquid, it moves at a speed of 2.2 x 108 m/s. if the frequency of this light wave is 1.1 x 108 hz, what is the wavelength of this microwave?

Which symbol in the first law of thermodynamics represents the sum of the chemical and thermal energy stored in atoms and molecules? a. q b. w c. v d. u