What was the average number of tropical storms per season for the time period 1995-2004?

What happens to the energy of the electron when it absorbs a photon? A. There is no change in the energy of the electron. B. The energy of the electron increases. C. The energy of the electron decreases. D.

The atomic mass of an element is A. twice the number of protons in one atom of the element. B. the sum of the protons and neutrons in one atom of the element. C. a weighted average of the masses of an element's isotopes. D.

Laser light exhibits much stronger interference effects than light from a flashlight. This is because: laser light has a much shorter wavelength than light from a flashlight. laser light is both coherent and monochromatic.

Explain why an ordinary bar magnet doesn't rotate and align itself with Earth's magnetic field when you place it on a table.

1) A force of 20 Newton acts on a bar having a cross sectional area of 0.8m^2 and length 10cm. calculate the stress developed in the bar

An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. in the process, the electron acquires a speed ve, while the proton acquires a speed vp. find the ratio ve/vp.

Why water is matter? what is the reason

Restate newton's first law in terms of acceleratin

What step precedes the onset of hydrogen fusion in a star?

Manuel is holding a 5kg box how much force is he exerting on it