Questions

A bowling ball moves 18 meters every 2 seconds down the lane at a bowling alley. What is the speed of the bowling ball?

A

18 meters per second

B

9 meters per second

C

2 meters per second

D

36 meters per second

The change in internal energy during one complete cycle of a heat engine A. equals the net heat flow into the engine. B. equals zero. C. equals the heat energy exhausted from the engine. D. equals the heat energy entering the engine.

Explain how we were able to boil water at room temperature

M&S Problem 2.47 (extended) An electric motor operating at steady state draws a current of 20 ap at a voltage of 110 V. The output shaft rotates at a constant speed of 2000 RPM and exerts a torque of 9.07 N-m.

Explain why it's important that the alveoli is only 1 cell thick

How can scientists eliminate the chance of error in their investigations

How much more ground motion is produced by an earthquake of magnitude 7.0 than by an earthquake of magnitude 4.0?

What evidence is there of life in a mini habitat?

A hole is drilled to the center of the earth and a ball is dropped into it. When the ball is at the earth's center, compared with their respective values at the earth's surface,

What is the development of static?

Methane gas absorbs red light, and methane clouds reflect blue light, giving Uranus and Neptune their distinctive blue colors. Why do Uranus and Neptune have methane clouds, but Jupiter and Saturn do not