Acceleration: is the change in velocity divided by the time it takes for the change to occur. . Acceleration is the change in verity divided by the time it takes to make the change, Acceleration has direction.
Answer: Absorbs and Increases
Explanation: As temperature of this substance rises from 20°C to 50°C, the substance absorbs heat and its kinetic energy increases.
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So E = 2x10^-3W/m^2*(π*(3.0x10^-3m)^2)*1min*60s... = 3.4x10^-6J
