In typical calorimetry problems, what is the usual conservation law being used?
a. energy b. heat
c. temperature d. None since nothing is being conserved.
a
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A boy on a skate board skates off a horizontal bench at a velocity of 10 m/s. One tenth of a second after he leaves the bench, to two significant figures, the magnitudes of his velocity and acceleration are:
a. 10 m/s; 9.8 m/s2. b. 9.0 m/s; 9.8 m/s2. c. 9.0 m/s; 9.0 m/s2. d. 1.0 m/s; 9.0 m/s2. e. 1.0 m/s; 9.8 m/s2.
Show that the conservation of mass equation is satisfied by the stream function ? which satisfies
A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The frequency of the electromagnetic oscillations in the circuit is
a. 5.73 × 10^?4 Hz. b. 9.55 × 10^?3 Hz. c. 0.442 Hz. d. 2.65 Hz. e. 44.0 Hz.
Stars in a constellation ________.
A. are close to one another in space B. neither rise nor set C. are in the same direction in the sky D. all formed at about the same time E. None of these choices is correct.