Oxygen makes up the largest part of living cells at 65%. What is the percentage of the second-most

abundant element in living cells?

What is the difference between electric field and electrostatic field?

An automobile can be considered to be mounted on four identical springs as far as vertical oscillations are concerned. The springs of a certain car are adjusted so that the oscillations have a frequency of 4.42 Hz.

Nails begin in which layer of the skin

Two man pull on a cart with a mass of 90 kg. if 1 man pulls 140 N to the right and the other man pulls 195 N to the left then find the magnitude and direction of the acceleration for the cart

A physics book rests upon a level table

Polychlorinated biphenyls (PCBs) have been banned because they are an environmental hazard. Which of the following was NOT a reason for banning them?

Crickets chirpy and milada jump from the top of a vertical cliff. chirpy drops downward and reaches the ground in 2.70 s, while milada jumps horizontally with an initial speed of 95.0 cm>s.

Explain how gamma rays are produced by energy

A mechanical wave may be described as a disturbance that is transported through a medium via the mechanism of particle-to-particle interaction. Which of these is not classified as a mechanical wave? A) earthquake B) light C) sound D) water

How many paths do the electrons have to flowlin a series circuit?