As a roller coaster car starts down a slope, it's velocity is 4m/s. But 3 seconds later it's velocity is 22m/s in the same direction. What is its acceleration

How much heat is needed to melt 45.00 g of ice at 0°c if the latent heat of fusion of water is 333.7 j/g?

In a normal atom, how many electrons are there compared with protons?

How can an atom that has 5 valence electrons achieve a full set of valence electrons

When sinkholes expand, creating isolated towers of rock, what is occurring? A. Rainwater is becoming more acidic B. Mature karst topography is being eroded C. Young karst topography is evolving into mature karst topography D.

Put these components of wind energy production in order from first to last. The wind spins turbines. A wind of at least 15 mph is blowing. The spinning of the turbines is used to create electricity.

An atom of nitrogen has five valence electrons. How could a nitrogen atom become more chemically stable

Mirages are due to: interference refraction reflection scattering

As you throw a ball, you exert a force on that ball of 4.2 N. You exert this force on the ball while the ball moves a distance of 0.50 m. The ball then leaves your hand and travels a horizontal distance of 8.5 m to your friend.

How does folding change rock layers

Why is mass movement more common after a heavy rainfall?