A hot blackbody emits a(n) _______________ spectrum
Fill in the blank(s) with correct word
continuous
continuum
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A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.If two slide projectors are connected in parallel across the same 120-volt source, the current drawn from the source is __________
Fill in the blank(s) with correct word
When you sit by a campfire, by what method of heat transfer are you primarily being warmed?
What will be an ideal response?
An ideal Carnot engine has an efficiency of 83.0% and performs 4500 J of work every cycle. How much energy is discharged to the lower temperature reservoir every cycle?
A) 920 J B) 830 J C) 740 J D) 3700 J E) 5400 J
Ocean trenches such as the Tonga and Marianas Trench, are
A) subduction zones where lithosphere is pulled down to the asthenosphere. B) some of the steepest places on Earth. C) found at continental-continental plate boundaries that mark the the deepest places on Earth.