Two balls move down a incline. One spins, while the other slides. Which one is going faster at the bottom?

What's the value of 1,152 Btu in joules? A. 1,964,445 J B. 987,875 J C. 2,485,664 J D. 1,215,360 J

Light waves are traveling through glass. If the wavelength of some part of the light wave is 4 x 10^ (-7) m and the frequency of that light is 5 x 10^ (14) Hz, what is the speed of light through the glass? 8 x 10^ (-22) m/s 1.

On a camping trip, your friend tells you that fluffing up a down sleeping bag before you go to bed will keep you warmer than sleeping in the same bag when it is still crushed from being in its storage sack. Explain why this happens.

A small charged bead has a mass of 1.0 g. It is held in a uniform electric field of magnitude E = 200,000 N/C, directed upward. When the bead is released, it accelerates upward with an acceleration of 20 m/s2. What is the charge on the bead?

How does an airplane's kinetic energy and potential energy change as it takes off and lands

What is the special feature of the upper mantle?

What is the difference between weight and mass? mass and weight are both intrinsic properties of an object. if you multiply the mass of an object by the acceleration due to gravity, you will obtain the object's weight.

A skipper on a boat notices wave crests passing the anchor chain every 5 seconds. the skipper estimates the distance between crests is 15 m. what is the speed of the water waves?

According to this lesson, how many major ice ages has the earth undergone? A. 2 B. 3 C. 4 D. 5

In 2016, the city of Rio de Janeiro had a population density of 5377 people/km2. What was the population density of Rio in people per square meter?