Two slides have the same height at the top, but one is short and steep while the other is a long gentle slope. If they can be considered frictionless, which will produce the largest speed at the bottom?
A. They produce the same speed at the bottom
B. Depends on the mass of the person on the slide
C. The steep slide
D. The gradual slide
Ans: A. They produce the same speed at the bottom
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In covalently bonded materials the creep mechanism of dislocation glide generally starts at a temperature of _________percent of the melting temperature in kelvin.
Fill in the blank(s) with the appropriate word(s).
A system consists of two thermal reservoirs in contact with each other, one at temperature 300°C and the other at temperature 200°C. 600 J of heat transfers from the 300°C reservoir to the 200°C reservoir
What is the change in entropy of this system? A) 0.221 J/K B) 1.00 J/K C) 5.00 J/K D) -1.00 J/K E) 2.31 J/K
The absolute magnitude scale is defined so that a difference of five magnitudes is a luminosity difference of ________
Fill in the blank(s) with correct word
Can the lines in the figure below be equipotential lines?
a.
No, because there are sharp corners.
b.
No, because they are isolated lines.
c.
Yes, because any lines within a charge distribution are equipotential lines.
d.
Yes, they might be boundary lines of the two surfaces of a conductor.
e.
It is not possible to say without further information.