3. An explosion of gas from a Hawaiian volcano blows a bunch of rocks into the sky. Each has 2000J of

kinetic energy. Find the mass, to the nearest 0.001kg if its velocity is 32m/s.

Who is famous for having introduced the three laws of motion?

During cooling, the kinetic energy of the molecules falls. Why does this happen? A. The motion of the molecules increases. B. The motion of the molecules slows down. C. The Van der Waals forces between molecules decrease. D.

The weight of a body above sea level varies inversely with the square of the distance from the center of Earth.

Which team sport has individual competition but ultimately working together to win the contest?

What star appears the brightest in the sky (other than the Sun) ? The second brightest? What color is Betelgeuse? Use Appendix J to find the answers.

A CFL bulb has an efficiency of 8.9% and a power of 22 W. How much light energy does the lightbulb produce in 1 second

Which of the following is true of high clouds?

A ferris wheel takes 5 minutes to complete one full rotation, what is the angular velocity of the ferris wheel

A heat engine has a thermal efficiency of 45%. how much power does the engine produce when heat is transferred into it at a rate of 109 kj/hr?

Dos pelotas de tenis se lanzan verticalmente, hacia arriba y desde el mismo punto, con 2 s de diferencia. La velocidad inicial de la primera es de 20 m/s, y la de la segunda, de 30 m/s.