PLEASE HELP THIS IS THE LAST DAY AND IM FAILING In this lab, what did the pennies represent? (im sorry if the words are small on the paper it makes me crop it so i had to put my camera farther away)

What are the major types of a chemical compound

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element