What is the kinetic energy of a 0.240-kg baseball thrown at 37.5 m/s?
a. 338 J
b. 4.50 J
c. 169 J
d. 9.00 J
e. 37.7 J
c
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A substance most commonly emits heat energy by the process of
A) conduction. B) convection. C) radiation. D) none of the above
Of the three types of nuclear decay, only __________ does not affect the atomic number of the nucleus
Fill in the blank(s) with correct word
This photo was taken from orbit around some planet. What planet is it, and how do you know?
A) Mars because we see dried up riverbeds B) the Moon because it has craters C) Venus because of its yellowish color D) Mercury because we see gigantic cliffs
First Law of Thermodynamics: During an isochoric process, the internal (thermal) energy of a gas decreases by 50 J. How much heat is added to the gas during this process?
A. 0 J B. 50 J C. -50 J D. 25 J E. -25 J