After rubbing the hair on your head with a balloon, you determine there are 2.4 * 10 ^ 18 electrons on your head. What is the charge, in coulombs (C)of your head? Solve, and explain how you were able to determine this information.

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

which statements describe the image? check all that apply.the wood is releasing argon gas.this information is useful for dating ancient rock.the process works only with organic matter.the element has a half-life of 5,730 years.this shows the half-life of carbon-19.

When doing scientific research ,the sources used should be ?