Which of the following objects is not normally used in current space exploration?
a.
space shuttles
c.
single use rockets
b.
space stations
d.
space probes

The mass of a muon is 207 times the electron mass; the average lifetime of muons at rest is 2.21 μs. in a certain experiment, muons moving through a laboratory are measured to have an average lifetime of 7.04 μs. for the moving muons, what are (a) β (b) k, and (c) p? the rest energy of the electron is 0.511 mev.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

What happens when a rubber rod is rubbed with a piece of fur?