What is the efficiency of her body when a cyclist expends 1000 w of power to deliver mechanical energy to the bicycle at the rate of 100w?

If one side of switch is open and another one closed so what gone happen

Which of these is an example of the interactions between the ocean and the biosphere?

List at least five examples of minerals and their common uses.

Two teams of nine members each engage in tug-of-war. Each of the first team's members has an average mass of 68 kg and exerts an average force of 1350 N horizontally.

What is the relationship between gravity and pressure in a nebula? A.) Gravity reduces pressure. B.) Pressure balances gravity. C.) Pressure increases gravity. D.) None of the above.

Charged low pressure refrigeration machines may be most efficiently leak checked by

The boundaries between all of these plates are best described as the sites of

Which two substances could be produced in a combustion reaction? A. Carbon dioxide and oxygen B. Carbon dioxide and water C. Heptane and water D. Heptane and oxygen

How are characteristic properties of a given substance different from its other properties and chemical properties

What instrument can you use to measure the circumference of your waist?