Which of the following best explains why a magnet sticks to a refrigerator? the magnet is

What is the kinetic energy of a vehicle that has a mass of 3,500 kg and is moving at 40 m/s

The Sun emits a solar flare directly aimed at Earth. Which instrument on an orbiting satellite would detect the flare first? A) All sensors simultaneously, as the speed of all electromagnetic waves is the same.

Temperature difference in the body. The surface temperature of the body is normally about 7.00 ∘C lower than the internal temperature. Express this temperature difference in kelvins and in Fahrenheit degrees. Answer in the order indicated.

If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?

The curved section of a horizontal highway is a circular unbanked arc of radius 740 m. If the coefficient of static friction between this roadway and typical tires is 0.

How does a walkie-talkie work and why do people still use them?

A 125-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m is set in motion by wrapping a rope about the rim of the disk and pulling on the rope.

Jose wandered 4 kilometers at 2 kilometers per hour. How long did Jose wander?

What is the acceleration of a 10kg pushed by a 5n force

A device that changes thermal energy into mechanical energy