An fm radio station broadcasts electromagnetic radiation at a frequency of 101.7 mhz. the wavelength of this radiation is m.

The velocity of electromagnetic radiation in free space (air) is the speed of light. It is c = 3 x 10⁸ m/s.
The broadcasting frequency is f = 101.7 mhz = 101.7 x 10⁹ hz.

Because velocity =  frequency *  wavelength, the wavelength of the radiation is
λ = c/f
   = (3x10⁸ m/s)/(101.7x10⁹ 1/s)
   = 2.95 x 10⁻³ m 
   = 2.95 mm

2.95 mm

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.

Amicroscope, because these cells are so small that you would not be able to see them, or what they attack without it.