Solve the problem. Snell's Law states that 
Use this law to find the requested value. If 
find 
Round your answer to the nearest degree.
A. ?2 = 33°
B. ?2 = 31°
C. ?2 = 34°
D. ?2 = 30°
Answer: B
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Find the quotient.
÷ 
A. - 
B. - 
C. 
D. 
Find the percent increase or decrease.
A. 65% decrease B. 80% increase C. 75% increase D. 87% increase
Before the parachute opens, the velocity v (in meters per second) of a skydiver is given by 
, where t is time in seconds into the jump. After t seconds, a certain falling object has a velocity v given by 
variablename="impvar_41631cc6bbec485098a789628" />. What is the difference in their velocities after 27 seconds? Round to two decimal places. ? A. 9.81 m/sec B. 5.60 m/sec C. 0.17 m/sec D. 9.00 m/sec E. 9.17 m/sec
Solve the system of equations.
A. x = 0, y = 1, z = 0; (0, 1, 0) B. x = 0, y = 1, z = -1; (0, 1, -1) C. x = 0, y = 0, z = 1; (0, 0, 1) D. inconsistent