What is the best description of a wave

Discuss how electromagnets have been created that are strong enough to pick up cars in a wrecking yard and are able to be switched off, dropped the cars onto a scrap pile to be crushed.

A train leaves the station heading south on the tracks. It takes the train 5 seconds to reach 50 miles per hour. It completes the entire 100 mile trip in two hours. Calculate the train's average speed and velocity over the two hour trip.

Select all that apply. There is no sound in the vacuum of space. Why? Sound must travel through something that vibrates. There is no energy in space. There is no air to vibrate the human eardrum. Space is too full of light energy.

If the constant acceleration continues for 10.0s, what will be it's velocity then?

This type of burn results from high temperatures caused by an electric arc or explosion near the body

What are three problems that can result from poor soil management? Erosion Nutrient depletion Development Desertification

Suppose an ice hockey puck strikes a hockey stick that lies flat on the ice and is free to move in any direction.

The total power input to a pumped storage power station is 600 MW The useful power output is 540 MW calculate the efficiency of this pumped storage power station

What do you think swarming locusts affect planted crops?

What happens when a hydrogen atom acts like a nonmetal in a chemical reaction?