The immune system tries to stop invasions by foreign agents by either killing cells directly or by

Why do automobiles rust more easily in wet climates than drier climates?

1) Two cars both moving at 27m/s (60mile/hr) pass each other on a road, one moving east the othe other west. 1a) both cars have the same speed (T, F) 1b) both cars have the same velocity (T, F)

What properties of water make it useful for washing and cleaning

When you cool liquid water to 0 celsius what will happen. A the water will freeze making ice. B. the water will evaporate creating ice

What is the equivalent resistance for a parallel circuit that has two resistors: 18.0 ohms and 23.5 ohms? A. 10.2 ohms B. 20.8 ohms C. 5.5 ohms D. 41.5 ohms

Skeletal muscle cells have large stores of ATP that are readily available and alone can provide energy for maximal exercise lasting 30-60 seconds.

A catcher "gives" with a baseball when catching it. If the baseball exerts a force of 475 N on the glove such that the glove is displaced 8.97 cm, how much work is done by the ball? Answer in units of J.

Which of the following is the best sign that cooking pancake batter causes a chemical change

The electric field near the earth's surface has magnitude of about 150n/c. what is the acceleration experienced by an electron near the surface of the earth? express your answer to two significant figures and include the appropriate units.

Minerals are considered to be Answer made out of rocks the building blocks of rocks extremely rare and valuable difficult to find