1 point A polar bear starts at the North Pole. It travels 1.0 km South, then 1.0 km
East, and then 1.0 km North to return to its starting point. This trip takes 45
minutes. What was the bear's average SPEED? *
0.00 km/hr
0.067 km/hr
4.0 km/hr
5.3 km/hr

What is the measure of a change in an objects velocity?

What is a possible result of higher air temperature caused by global warming

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?