It is theorized that protons and neutrons are actually formed from a combination of smaller particles. what are these particles called?

A person pushes horizontally with a force of 180. N on a 67.0 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.14.

On a brisk walk, a person burns about 331 Cal/h. If the brisk walk were done at 3.0 mi/h, how far would a person have to walk to burn off 1 lb of body fat? (A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal.) mi?

A bicyclist travels in a circle of radius 26.4 m at a constant speed of 7.33 m/s. The bicycle-rider mass is 82.0 kg.

In the circuit diagram, what does the symbol made of two long lines and two short lines with a positive and a negative sign at each end represent? a source of electrical energy an electrical conductor an electrical resistor a closed switch

Which planet is associated with the great dark spot?

Listening to the radio, you can hear two stations at once. Describe this wave interaction

The volume of a gas is reduced when the temperature is decreased

Describe the Dark Ages of our universe.

Two boxes, P and Q, are at rest on a frictionless horizontal surface. A light, flexible cord connects them. The mass of P is greater than the mass of Q.

Determine the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic field. The electric field and the magnetic field are also perpendicular to each other and have magnitudes 7.7 x 10^3 V/m and 7.