Which experimental result led to the inference that atoms have a dense, positive center?

A. A few alpha particles bounced off a thin sheet of gold foil.

B. Most alpha particles passed straight through a thin sheet of gold
foil.

C. The beam in a cathode ray tube was moved by a magnetic force.

D. The beam in a cathode ray tube was moved by an electric force.

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done 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? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock