Which statements describe intensity? check all that apply.
intensity is the amount of energy that flows in an area per unit of time.
intensity is the number of wavelengths that flow in an area per unit of time.
intensity that is lower than or equal to 85 units can harm human hearing.
intensity that is greater than or equal to 85 units can harm human hearing.
intensity is measured in decibels.
intensity is measured in hertz.
(a, d, e) your welcome)

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc