.. The table below shows the frequency () and the wavelength (a) for three different waves. Determine the
speed (v) and period (T) of the waves. Show your work and use appropriate units.
f= 10.0 Hz
V=
2= 10.0 m
T =
f= 2.0 Hz
V%3D
2=0.10 m
T=
f= 1000 Hz
V =
2=2.0 m
T =

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.

The momentum of a man riding his bicycle downhill can be calculated. the bicycle and the man have a combined mass of 40 kg. the velocity of the bicycle is 10 m/s. calculate the momentum.