Physics

Part A What is the wavelength of a 20.25 x 10" Hz radar signal in free space? The speed of light is 2.9979 x 105 m/s. Express your answer to four significant figures and include the appropriate units. * = 1.480x10-2 m Submit Previous Answers Correct Part B What is the frequency of an X-ray with wavelength 0.15 nm ? Assume that the wave travels in free space. Express your answer to two significant figures and include the appropriate units. HA ? f = Value Units Submit Previous Answers Request Answer Calculate the displacement current In between the square plates, 5.4 cm on a side, of a capacitor if the electric field is changing at a rate of 1.4 x 10 V/m . s. Express your answer to two significant figures and include the appropriate units. HA boo ? ID= Value Units Submit Request