Homework ?
an object will remain at rest or maintain constant, straight-line motion unless acted on by a force that is

a.
inertial

b.
balanced

c.
unbalanced

d.
along a straight line

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Does anyone have the answers to online physics course plato course physics, semester a v3.0

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.