8. David Arva is standing on the roof of his house. He throws a basketball off the roof. Which of these best describes what happens as the ball falls? A The kinetic energy increases and so does the total amount of energy B. The kinetic energy decreases and the total amount of energy increases C. The potential energy decreases and the total amount of energy also decreases D. The kinetic energy increases and the potential energy decreases. But the total energy remains the same.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

here are some information of the future of geothermal energy:

-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

-we are hoping that one day, we will get all of our energy from renewable energy sources such as geothermal energy

hope this !

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.