A piece of iron heated to 200 degrees Celsius has twice as much internal energy as a piece of iron at 100 degrees Celsius.
Answer the following statement true (T) or false (F)
False
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Compton Scattering: An 18.0 pm wavelength photon is scattered by a stationary electron through an angle of 120°. What is the wavelength of the scattered photon? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)
A. 19.2 pm B. 20.4 pm C. 21.6 pm D. 22.9 pm E. 24.1 pm
Only one of the statements below uses the term theory in its correct, scientific sense. Which one?
A) Einstein's theory of relativity has been tested and verified thousands of times. B) Evolution is only a theory, so there's no reason to think it really happened. C) I have a new theory about the cause of earthquakes, and I plan to start testing it soon. D) I wrote a theory that is 152 pages long.
Specific Heat: How much heat is required to raise the temperature of a 225-g lead ball from 15.0°C to 25.0°C? The specific heat of lead is 128 J/kg ? K.
A. 725 J B. 576 J C. 145 J D. 217 J E. 288 J
The formation of our _______________ occurred about 4.6 billion years ago
Fill in the blank(s) with correct word