Imagine standing on a bathroom scale and reading your weight. now lift one foot and read your weight again. does the scale read more, less or the same weight when you are standing on one foot?

Light waves from the sun can travel through outer space and reach the earth. This suggests that light is a (n) A) mechanical wave. B) compression wave C) Longitudinal wave D) electromagnetic wave

A large jet flying overhead is low enough so that a man on the ground can hear its engines. The man sees the jet before he hears the engines because A) his sight is stronger than his hearing. B) his hearing is stronger than his sight.

Johnny pushes a crate 5.0 meters across the floor with a force of 15 newtons. How much work does he do? A. 0.33 Joules B. 75 Joules C. 3 Joules D. 45 Joules

Describe three events you cannot explain.

Kate is sitting on a 1.5-m-wide porch swing. Because of the rain the night before, the left side of the swing is wet, and Kate sits close to the right side. The mass of the swing seat is 10 kg and Kate's mass is 55 kg.

What shows evidence of active transport?

A man stands on a platform that is rotating (without friction) with an angular speed of 1.2 rev/s; his arms are outstretched and he holds a brick in each hand.

A perfectly conductive plate is placed in the y z-plane. An electromagnetic wave with electric field is incident on the conductor.

What is Electric potential energy in the easiest way to explain?!!

A variable vane turbocharger allows for elimination of the A. exhaust cooler. B. turbocharger wastegate. C. diesel oxygen sensor. D. intake air cooler.