What directly controls breathing, heartbeat, and muscle movement in the human body?

A. electrical signals

B. chemical reactions

C. variations in temperature

D. the heart

Which of the following represents the velocity of a moving object? B. 40 m north A. 40 C. 40 m/s D. 40m/s north

A string that is 18.0 cm long and has a mass per unit length of 8.00 10-3 kg/m is stretched to a tension of 23.0 n. (a find the fundamental frequency.

Power is measured in: A) J/s B) J2/s C) s/J D) s2/J

Almost 500 grams of sugar can dissolve in 100 milliters of boiling water. you have a boiling solution of liquid with as much sugat as it can hold. if you cool the solution slowly and sugar does not settle out as it cools you know the solution is

What unit is used to measure weighted average atomic mass?

Two planes leave wichita at noon. One planes flies east 30m/h faster than the other plane, flying east at what time will they be 1200 mi apart?

Red, blue, and green are called a __ __ __ __ __ __ __ primary colors because when they are added together, they form all of the colors of the spectrum.

What is it called after data is collected they are often arranged in a what?

If you have a pci express version 2 video card, how many pins will the power connector have if the card requires extra power?

As ocean waves get closer to the shore they slow down. This slowing causes them to bend and come in close to parallel with the shore. This is because shallow water and deep water can be thought of as two different media.