Which of the following has the highest specific heat?
a. ice
b. water
c. steam
d. They are all water, so they all have the same specific heat.
b
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During the Planck Epoch, all forces were ________, and the universe was considered as a singularity
Fill in the blank(s) with correct word
Jennifer is inside her windowless space station laboratory and finds herself increasingly pulled to the floor. What experiment can she perform inside the lab to decide if she is feeling the effect of an acceleration or an effect of gravity?
What will be an ideal response?
Capacitor #1 has parallel plates of length L and width W, plate separation d, and is filled with dielectric with constant ?.Capacitor #2 has parallel plates of length 2L and width 2W, plate separation 2d, and is filled with dielectric with constant 2?. If a voltage V is applied to capacitor #1 and a voltage 2V is applied to capacitor #2, which capacitor stores more energy and by what factor?
a. Capacitor #2 by a factor of 8 b. Capacitor #2 by a factor of 16 c. Capacitor #1 by a factor of 4 d. Both capacitors store the same energy.
If two heaters are connected in parallel across the 120 volt source, the current in amperes drawn from the source is
a. 5 c. 20 b. 10 d. none of the above