A refrigerator
A) produces cold.
B) causes internal energy to disappear.
C) transfers internal energy from inside to outside.
D) transfers heat into cold.
E) none of the above
Answer: C
You might also like to view...
A certain capacitor is charged to 10 V and then, at t = 0, allowed to discharge through a certain resistor. There will be a certain time before the voltage across the capacitor reaches 5 V. This time can be decreased for this circuit by increasing:
a. the size of the capacitor. b. the size of the resistor. c. the size of the time constant. d. None of the above.
What is the most accurate way to determine the distance to a very distant galaxy?
A) Stellar parallax B) main-sequence fitting C) white dwarf supernova D) Cepheid variables E) Hubble's law
Discuss the solution to the flatness problem and horizon problem of the Universe
What will be an ideal response?
Projectile Motion: A projectile is fired from ground level on a horizontal plain. If the initial speed of the projectile is now doubled, and we neglect air resistance,
A. its range will be increased by 
.
B. its range will double.
C. its range will be decreased by a factor of two.
D. its range will quadruple.
E. its range will decrease by a factor of four.