Ere’s the design information for the roller coaster: The track has two hills.
The mass of a roller coaster car with passengers is 850 kilograms.
The first hill is 50 meters high.
There are 320 meters of track between the top of the first hill and the top of the second hill.
Label the drawing of the roller coaster system with the information above. Label the height of the second hill with a question mark.

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above