Which one of the following substances is a liquid fuel used in rocket engines?

A. Liquid oxygen

B. Potassium perchlorate

C. Codium nitrate

D. Ammonia

Heat has the same units as:

Determine the approximate acceleration due to gravity, g, on this planet

A balloon has a maximum capacity of 1700 m3. on a cool morning (temperature = 10°c, some hot-air balloonists start filling their balloon with air until it occupies three-fourths of the maximum possible volume.

In a closed electrical circuit, what visible evidence indicates that energy is flowing?

Joshua is about to start a conversation with someone he has a crush on. He's not sure how it will go. Which of the following might Joshua experience?

A parcel is traveling on a horizontal conveyer belt moving at 1 meter/second. At the end of the conveyor belt, the parcel lands on a tray after 1 second. Calculate the horizontal and vertical distance of the tray from the end of the conveyor belt.

What is a bed load that a stream carries made up of?

A car moved at a speed of 50 kilometers/hour. Its kinetic energy is 400 joules. If the same car moves at a speed of 100 kilometers/hour

What are the methods of heat transfer?

Which represents a deletion of the section of DNA shown here, a-c-t-g-g-a-t? A. A-c-t-a-t B. A-c-t-c-g-a-t C. A-t-c-t-g-g-a-t D. A-c-t-c-c-t-t