Which of the following particles has a positive charge?

proton

neutron

electron

Which best describes friction?

What does this mathematical expression mean? D 1/T A. Density is directly related to temperature B. Density is indirectly related to temperature C. Density is inversely related to temperature D. Density equals the inverse of temperature

Jana lifted a 200-newton weight over her head to a distance of 2 meters above the ground. How much work did she do?

What happens after a thruster is fired to push a spacecraft

A beam of red and blue light in air is incident at 30º on a glass surface. Which is true? a. The blue light is bent toward the normal more than the red light. b. The blue light is bent toward the normal less than the red light. c.

Which of these is an element? O carbon O air O carbon dioxide water

What could result if the liver was not working properly?

A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s. What is the distance between the flying bullets?

A runner with a mass of 75kg runs 6m/s calculate the kinetic energy stored in the runner

Watt which is a unit of power is equal to