What do you notice about the temperature of the materials before and after
touching? How does the thermal energy move from one sample to another?
Help

before touching it is lower but after touching it's slightly higher because body warmth is transferred to the material through conduction

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

+15-35=-20

going in opposite directions