It is late and Carlos is sliding down a rope from his third floor window to meet his friend Juan. As he slides down the rope faster and faster, he becomes frightened and grabs harder on the rope, increasing the tension in the rope. As soon as the upward tension in the rope becomes equal to his weight:
a. Carlos will stop.
b. Carlos will slow down.
c. Carlos will continue down at a constant velocity.
d. the rope must break.
C
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Unequal surface heating that causes localized pockets of air (thermals) to rise because of their buoyancy is termed ________.
If glass expanded more than mercury in a thermometer, then with rising temperature the column of mercury would
A) rise. B) not change. C) fall.
A detector absorbs 1.0 × 10^9 photons of monochromatic light and their total energy is found to be 0.33 nJ. What is the wavelength associated with these photons? (h = 6.63 × 10^?34 J?s, c = 3.00 × 10^8 m/s)
a. 600 nm b. 540 nm c. 400 nm d. 500 nm
Why do some people think that cogeneration is a useful strategy for dealing with energy generation? Explain
What will be an ideal response?