35 POINTS!

Which of the following are two examples of ways that objects can have potential energy?

A boulder that is falling after being pushed off a cliff.

A Iron nail as it move towards
a magnet.

A pebble in a slingshot before it has been shot.

A pebble traveling as it is shot with a slingshot.

**40** points asapessay questions (10 points possible) clear image of next, create your own scenario. it can be one of your own real experiences or one you make up. use imagery in your writing to give your instructor a the setting and an action taking pace in your writing explain the structure and functions of the skin at work in your scenario. !

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?