If a 6 kilogram box is moved from the floor to a storage compartment 2 meters above the floor by how many joules does it's gravitational potential energy change

A car travels west for 240 km in 4 h. what is the car's velocity?

Tranmission of light signals through optical fiber

Suppose that two objects form together (i. e., at the same time), in orbit around each other, one with a mass 15 times that of Jupiter, and the other 5 times that of Jupiter. Would these objects be classified as planets

36 kilo-joules to joules?

Which will be attracted to (or repelled by) a magnet

A spring (k = 790 N/m) has a length of 48 cm when zero net force is applied to it. What will its length be when 230 N of force is applied to stretch it? Question 3 options: 3.4 m 0.77 m 3.9 m 0.29 m

Inert gas used to make bright city lights True or False

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes

It is difficult to lift a heavy stone than the lighter one on the earth, why?