It requires 350 joules to raise a certain amount of a substance from 10.0°c to 30.0°
c. the specific heat of the substance is 1.2 j/g°
c. what is the mass?

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?