Falling rocks from the top of a mountain are what form of energy

How do you balance BaCl2 + H2SO4 arrow BaSO4 + HCl

what powerful force allows black holes to absorb light A. Nuclear fusion B. electromagnetism C. Gravity D. Nuclear banding E. all of the above

A 35kg child moves with uniform circular motion while riding a horse on a carousel. The horse is 3.2m from the carousel's axis of rotation and has a tangential speed of 2.6 m/s. What is the child's centripetal acceleration?

Which is the phase change in which a substance changes from a gas to liquid? condensation vaporization boiling evaporation

A charge Q is transfered from an initially uncharged plastic ball to an identical ball 12 cm away. The force of attraction is then 17 mN. How many electrons were transfered from one ball to the other

Why arent insulators allowed in operating rooms

What does Kepler's second law state? A. Planets travel in ellipses. B. Planets sweep equal areas in equal times. C. A planet's apparent backward movement is termed retrograde motion. D.

Why do charges build up in a cloud

How does the wave model of electrons orbiting the nucleus account for discrete energy values?

An ecosystem is all the populations of organisms that live together and A. the microorganisms that depend on them. B. the organisms that generate energy from sunlight. C. the physical factors with which they interact. D.