When an object is lifted 10 feet off the ground, it gains a certain amount of potential energy. If the same object is lifted 30 feet off the ground, its potential energy is .

3 times as much the potential energy

Explanation:

Potential energy is the energy possessed by an object by virtue of its position.

m= mass of object

g = acceleration due to gravity

h = height of an object  

When same object with same is lifted from 10 feet to 30 feet. The height has increased 3 times , thus the potential energy will also get 3 times as much.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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