Heat energy is one of the many various forms of energy. It defines the amount of energy contained in a body at a certain temperature
What will be an ideal response?
There is no such thing as "heat energy." Heat is energy that is being transferred
between bodies at different temperatures. Internal energy is that energy contained in a body
due to the thermal energy—vibrational kinetic energy—of the body and the internal
potential energy.
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Most of the deuterium that formed right after the Big Bang
A) is still around today. B) broke down into electrons and neutrons. C) turned into dark matter. D) quickly burned into helium nuclei. E) was found in the globular clusters.
A water rocket can reach a speed of 75 m/s in 0.050 seconds from launch. What is its average acceleration?
What will be an ideal response?
Compared to the amount of current that flows from a battery and into a circuit, the amount of current that returns to the battery is
A) less. B) the same. C) greater. D) dependent on the internal resistance of the battery.
Which of these is NOT a vector quantity?
a. momentum b. impulse c. displacement d. speed e. velocity