What two things do plants produce?

There is an explosion on the surface of a lake and two people John and Nil hear its sound. John is 150m away on a boat and Nil is 150m below the surface of water. Who would hear the sound first and why?

What happens when you brake earphones in to smaller and smaller pieces

What is the chemical equation, for li2+h20-li0h, use the drop down menu?

A heat pump with a COP of 3.15 is used to heat an air-tight house. When running, the heat pump consumes 5 kW of power.

Hypokinetic means: a. water exercise. b. too little exercise. c. too little pressure. d. infectious

An object travels 8 meters in the first second of travel, 8 meters again during the second second of travel, and 8 meters again during the third second. Its acceleration is A. 0 m/s^2 B. 8 m/s^2 C. 16 m/s^2 D. 32 m/s^2

Why does life be life

How are hypotheses and theories related to each other?

During the refrigeration cycle, what does the refrigerant do? Absorbs and releases thermal energy by first vaporizing then condensing. Absorbs and releases thermal energy by first condensing then vaporizing.

Find the unbalanced force required to accelerate a 6kg mass at 3ms