This table gives the masses of several planets. Planet Mass (× 1024 kilograms)

Mercury 0.33

Venus 4.87

Earth 5.97

Jupiter

1,898

Match each planet with the gravity near its surface.

Tiles

Mercury

Venus

Earth

Jupiter

PAIRS

8.9 m/s2:

9.8 m/s2:

23.1 m/s2:

3.7 m/s2:

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes

Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?