A Piece of Copper of Mass 100 G Is Being $\degree$

question 15

Multiple Choice

A piece of copper of mass 100 g is being drilled through with a ¹/₂" electric drill. The drill operates at 50.0 W and takes 30.0 s to bore through the copper. If all the energy from the drill heats the copper, find the copper's increase in temperature. (c_copper = 387 J/kg · $\degree$ C.)

• A) 40.6\(\degree\)C
• B) 38.8\(\degree\)C
• C) 31.0\(\degree\)C
• D) 27.3\(\degree\)C

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Definitions:

Power

The ability or capacity to do something or act in a particular way; in physics, it also refers to the rate at which work is done or energy is transferred.

Oxygen

A chemical element essential for aerobic respiration in living organisms, playing a crucial role in energy production within cells.

Carbon

A chemical element with symbol C and atomic number 6, known as the basis of all known life and the fourth most abundant element in the universe by mass.

Hydrogen

The lightest and most abundant element in the universe, consisting of one proton and one electron, and widely used in chemical reactions and as a potential clean energy source.