Question

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 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg, mostly in the palms and fingers.

Name: 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 20 rubs at a distance of 750 cm per rub and with an average fric 2
Uploaded: 2021-08-09T23:10:04-08:00
Duration: 5 min 27 s
Channel: Dominique Jan Tan
Description: 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 20 rubs at a distance of 750 cm per rub and with an average fric 2

          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 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only
0.100 kg, mostly in the palms and fingers.

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College Physics for AP® Courses

Irina Lyublinskaya, Gregg Wolfe, Douglas…

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Solved by Expert Dominique Jan Tan

08/09/2021

Step 1

Work is calculated by the formula: work = force x distance. In this case, the force is the frictional force of 40.0 N and the distance is 7.50 cm per rub. Since she rubs her hands back and forth for a total of 20 rubs, the total work done is: work = 40.0 N x Show more…

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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 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg, mostly in the palms and fingers.