A car moved 50 km West and 80 km East in 2 hours. What is its average velocity
in m/s and km/h?

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

What does the negative sign in f = –kx mean?

The maximum wavelength of light required to eject an electron from zinc is 270nm. calculate the threshold frequency of zinc.