8. A roller coaster's velocity at the top of a hill is 10 m/s. It reaches the bottom of the hill with a

velocity of 26 m/s. If the acceleration of the coaster is 8 m/s?, how long did it take to reach the

bottom of the hill?

How much space does 1pound of butter occupy if the density of butter is 0.94 grams/cm cubed

Linus builds an electrical circuit with a battery and with wires that carry the current. As the battery weakens, the current also weakens. How does this affect the magnetic field around the wires? 1The field gets stronger. 2The field gets weaker.

Why does earth rotates about it's axis?

A metric unit of volume

The continuous flow of charges through a material is called electric resistance. true or false

How does the frequency of an electromagnetic wave compare with the frequency of the vibrating electrons that produce it?

A 10 kg box is pushed with a force of 20N. What is the box's acceleration? 200 m/s 2 m/s2 2 m/s 200 m/s2

Which statement is true about planets with longer orbits in the solar system? A. They have longer periods of revolution. B. They are smaller in size. C. They have less distance to travel for one revolution. D. They have longer seasons

Atmospheric conditions near a mountain range are such that a cloud at an altitude of 2.00 km contains 3.20 ✕ 10^7 kg of water vapor. How long (in years) would it take for a 2.

In addition to the conditions required for any solar eclipse, what must also be true in order for you to observe a total solar eclipse?