Heat engines converts what type of energy into mechanical energy?

1. chemical

2. thermal

3. nuclear

4. elastic

What is true about the structure or function of the plasma membrane? Hydrophilic molecules attract the water the cell requires. The double layer prevents anything from entering the cell. The processes of endocytosis and exocytosis occur here.

All of the following are electromagnetic waves except a. X rays. b. sound waves. c. gamma rays. d. radio waves.

What is a push or a pull on an object known as

A car was moving at 30m/s when it hit a pole. It took 2 seconds to come to a stop. What was the car's acceleration in the crash

3. You are flying 2586 miles from San Francisco to New York. An hour into the flight, you are 600 miles from San Francisco. What is your speed in m/s?

Where Pabs is absolute pressurePg, is gauge pressure, and Patm is atmospheric pressure. For example, if your tire gauge reads 34 lb/incz (pounds per square inch), then the absolute pressure is ...

The tip of a triangle is held 12.0 cm above the surface of a flat pool of water. A submerged swimmer in the pool sees the tip of the triangle at what distance above the water? Let the indices of refraction nwater = 1.33 and nair = 1.00.

What is a lever used for?

What did the romans build as a step toward environment management

Accelerations are produced by equal forces or unequal forces?