Infrared radiation causes your skin to tan
a. True
b. False
Indicate whether the statement is true or false
False
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Five gas molecules are found to have speeds of 100, 200, 300, 400, and 500 m/s. The rms speed (in m/s) is
a. 390. b. 300. c. 360. d. 330. e. 320.
Why do strange particles have long lifetimes compared to other strongly interacting particles?
a. No one knows—this is why they are called "strange.". b. They only decay via the weak interaction. c. They are more massive. d. none of the above
You are asked to select a polymer for a design where the temperature could vary between 0°C and 100°C, and it is desired that the polymer’s mechanical properties should not significantly change over this temperature range. What type of polymers would you initially investigate for this design, and why would you make this selection?
What will be an ideal response?
The production of elements heavier than helium by fusion in stars and during supernova explosions is called ______________________
Fill in the blank(s) with correct word