Give one example when it might be important to know how much gravitational potential energy is stored by an object. why is it important?

Asap time is ! best answer gets compose at least one well-developed paragraph on the following: define the term concurrent powers, and give an example of a concurrent power of government.

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z