Physics, 06.08.2019 00:20 christa140
Rubbing your hands together warms them by converting work into thermal energy. if a woman rubs her hands back and forth for a total of 18 rubs, at a distance of 7.16 cm per rub, and with an average frictional force of 48 n, what is the temperature increase? the mass of tissues warmed is only 0.1 kg, mostly in the palms and fingers.
Answers: 3
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Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above
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Mrs. smith does her daily chores. she walks 5 m to the laundry room and then turns around and walks -14 m to the kitchen. the whole process takes her 11 minutes. what was her average velocity for these events? (choose more than 1) a. 1.48 m/s b. 0.212 m/s c. -0.136 m/s d. -0.0075 m/s
Answers: 3
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