Asimple pendulum consists of a ball connected to one end of a thin brass wire. the period of the pendulum is 2.51 s. the temperature rises by 142 c°, and the length of the wire increases. determine the change in the period of the heated pendulum.

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.

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

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