Mass and weight are similar, but not the same thing. in which of the following examples would the objects weight change, but mass stay the same? a. a child grows taller b. a person goes on a medical diet. c. an astronaut travels from the earth to the moon d. a snowball rolls downhill and picks up snow making it grow

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

For which pair of objects would adding the same a

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?