The circuit of a motor racing track is 3 km in length. In a race, a car goes 25 times round the circuit in 30 minutes.
What is the average speed of the car?
Yes

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.