The normal U.S. average annual radiation dose per person is about how many REM?
What will be an ideal response?
0.20
Physics & Space Science
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Answer the following statement true (T) or false (F)
Physics & Space Science
Recall that an up quark (u) has a charge of +2/3 and a down quark (d) has a charge of -1/3. Which of the following quark compositions describes a proton?
A) uuu B) uud C) udd D) uuudd
Physics & Space Science
If the solubility of a compound is 72 grams per liter, how many grams of the compound will dissolve in 0.50 liters?
A) 36 g B) 72 g C) 144 g D) 30 g E) none of the above
Physics & Space Science
A 120 kg scuba diver with tanks and equipment is submerged and floating underwater in seawater. The volume of the seawater displaced by the scuba diver with tanks and equipment is
A. 0.097 
B. 0.102
C. 0.117
D. 0.154
E. 0.177
Physics & Space Science