Easy multiple choice and mark brainliest:

to understand the photoelectric effect, physicists should view light as having what type of properties?

a. properties of both a wave and a particle
b. properties of a particle
c. properties of a wave
d. properties of neither a wave nor a particle

halp me pls : ,)

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: