Solve the problem using Snell's Law: 
= 
.The index of refraction of light passing from air into a second medium is 1.40. If the angle of incidence is 
what is the angle of refraction (to two decimal places)?
A. 42.48°
B. 45.13°
C. 44.87°
D. 47.52°
Answer: C
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Solve the problem.A swimming pool is 23 m long and 8 m wide, with a bottom that slopes uniformly from a depth of 
at one end to a depth of 2 m at the other end (see figure). Assuming the pool is full, how much work is required to pump the water to a level 0.4 m above the top of the pool? Round to one decimal place when appropriate.
A. 5,529,813.3 J B. 5,048,960 J C. 12,983,040 J D. 10,578,773.3 J
Use the definition to find an expression for the instantaneous acceleration of an object moving with rectilinear motion according to the given function. The instantaneous acceleration is defined as the instantaneous rate of change of the velocity with respect to time. v = 2t4 - 4t3 + 8[v is the velocity]
A. 2t3 - 4t2 + 8 B. 8t3 - 12t2 + 8 C. 8t3 - 12t2 D. 2t3 - 4t2
Choose the line that most closely resembles the graph of the given equation.y = 4x - 3
A. 
B. 
C. 
D. 
Solve the problem.Given log102 = 0.3010 and log103 = 0.4771.Find log10 108.
A. 0.1992 B. 2.0333 C. 1.8572 D. 0.8616