What term is used to describe the hot ash, gases, and materials being erupted at speeds of up to 400 mph?

what is the force of friction between an 80kg box and the ground on Earth if the coefficient is 0.2?

When a potential difference of 12 v is applied to a wire 6.8 m long and 0.35 mm in diameter the result is an electric current of 2.1 a?

Explain the bending of light as a property of a warping of space

Which of the following parts of the electromagnetic spectrum has the lowest energy? A. Microwaves B. Visible light C. X-rays D. Ultraviolet light

Why do some balloons pop when they are left in sunlight for too long

A box with a mass of 100.0 kg slides down a ramp with a 50 degree angle. What is the weight of the box? N What is the value of the normal force? Round the answer to the nearest whole number.

How does thermal energy heat a house? What devices and systems are involved?

A skater with an initial speed of 7.68 m/s stops propelling himself and begins to coast across the ice, eventually coming to rest. Air resistance is negligible. (a) The coefficient of kinetic friction between the ice and the skate blades is 0.105.

A. A PH202 student lives next to a construction site and sees a crane with a wrecking ball demolish the building next door. The wrecking ball swings along the wall between her house and the neighbor's house.

Sometimes when you are training for event you may notice a decrease in improvement in level out of performance true or false