Microwaves are part of the electromagnetic spectrum and travel with a speed of 3.00 x 108 m/s, also known as 'c' the speed of light. Microwaves are defined to have a wavelength between 10 mm and 1 meter. What is the frequency of the microwaves produced when you heat up pizza pockets if the microwaves produced have a wavelength of 15cm. (

Sound travels at 1540 40 m/s in body tissue. If an ultrasound device sends out a frequenc of 16 MHz (16, 000, 000Hz) what is the wavelength of these sound waves?

(2) A 62 W (60 J/s) light bulb is 8.5% efficient, i.e. only 8.5% of the electrical energy it consumes (62 J each second) is converted to light and the rest is converted to waste heat. What is the light intensity 10 cm from the bulb in W/m2? (answer: 42 W/m?)

The WCCO AM radio transmitter has a power of 49800 W. You measure the intensity of the signal to be 8×10−6 W/m^2. How far are you from the tower? (in km)(a) 7.89×101 km(b) 2.23×101 km(c) 4.45×101 km(d) 1.98×106 km(e) 8.90×101 km

A police officer's radar gun emits radio waves at a frequency of 11.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 45 mph speed limit and a car travelling 9 mph faster? Assume that the cars are both headed directly away from the stationary officer. difference between frequencies: Hz