Which two layers of Earth are mainly composed of iron and nickel? inner core outer core lower mantle upper mantle crust

Describe two ways you could make an electromagnet more powerful. How and why it makes it more powerful. Winner get the crown

Which effect is created when two sound waves that are close in pitch interact? O A. Echoes O B. Loudness C. Beats O D. Intensity

What happens to the power of an electric circuit if the resistance is decreased? Explain your answer.

The tonga trench is located at the tectonic boundary between the pacific plate and the

Because angular momentum is conserved, an ice-skater who throws her arms out will

What is the mass in kg of a leopard in a tree if the tree branch is 36 m up and the leopard's gravitational potential energy is 29988 J?

Venus's average distance from the sun is 0.72 AU and Saturn's is 9.54 AU. Calculate the orbital velocity of Venus and Saturn around the sun. (The mass of the sun is 1.99 X 10^30 KG. an AU is 1.50 X 10^11 M.

Caleb's parent drove him to a swim meet 208 km away. It took them 2 hours, which included a 15-minute break to refuel. What was their average driving speed?

Why is thermal energy from the Sun transferred to Earth through electromagnetic waves instead of any other type of thermal energy transfer? Electromagnetic waves can carry energy through matter. Electromagnetic waves can travel through empty space.

Why do different elements emit different colors of light