Inertia is to mass.

directly proportional
inversely proportional
equal to
not related to

What is the relationship between the wavelength of a wave and it's energy?

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f