What type of image is formed by a lens if m = -2.0?
a. a virtual image that is larger than the object
b. a real image that is smaller than the object
c. a virtual image that is smaller than the object
d. a real image that is larger than the object

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.

Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?

What is "decrease in velocity" i need offering 60 !