An electromagnetic wave has a frequency of 3.0 x 105 hz. what is the
wavelength of the wave? use the equation 2 = and the speed of light as 3.0
x 108 m/s.
o a. 9.0 x 103 m
o b. 9.0x1013 m
o c. 1.0 x 103 m
o d. 1.0 x 1013 m

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?