What requires a physical medium in which to travel?

What is the definition of energy? heat from the sun it can be anything and everywhere food and water the ability to do work

How do simple machines make work easier? A. They reduce the speed of work. B. They increase the force needed to work. C. They increase the distance over which a force is applied. D. They add energy to the work.

Pumping apparatus driver/operators must be familiar with the different types of nozzles carried on their apparatus. How would a particular type of nozzle being used affect the hydraulic calculations that must be performed by the driver/operator?

Which would a person weigh the most standing on? Mercury, Venus, Earth, or Jupiter?

A 55 kg skater at rest on a frictionless rink throws a 3 kg ball, giving the ball a velocity of 8 m/s. What is the velocity of the skater immediately after?

In a polar covalent bond

Lindsay is late to class and is running down the hallway at a speed of 2 m/s the length of the hallway is 150 meters. How long will it take her to run down the hallway?

Which of the following is evidence that groundwater causes erosion and deposition?

Changing the direction of current will or will not affect the strength of an electromagnet

A swimming pool has the dimensions of 10 meters, 5 meters, and 1 meter. What is the pool's volume? 50 m 50 m3 50 m2 25 m3