If you need 10 moles of sucrose, how many liters of a 4.0 molar solution would you need?
A) 2.5 L
B) 0.25 L
C) 25 L
D) 10. L
E) none of the above
Answer: A
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Which one of the following particles can interact with all 4 of the known forces?
A) muon B) anti-proton C) electron D) neutrino E) graviton
Quarks have electric charges of magnitude
a. e. b. 1/3 e. c. 2/3 e. d. 0. e. none of the above
A 75-kg swimmer dives horizontally off a 500-kg raft. The diver's speed immediately after leaving the raft is 4.0 m/s. A micro-sensor system attached to the edge of the raft measures the time interval during which the diver applies an impulse to the raft just prior to leaving the raft surface. If the time interval is read as 0.20 s, what is the magnitude of the average horizontal force by diver on the raft?
a.900 N b.450 N c.525 N d.1500 N
When water evaporates from a body of water, what type of sediment is left behind?
What will be an ideal response?