Solve the problem.The force acting on a pendulum to bring it to its perpendicular resting point is called the restoring force. The restoring force F, in Newtons, acting on a string pendulum is given by the formula F = mg sin?where m is the mass in kilograms of the pendulum's bob, g ? 9.8 meters per second per second is the acceleration due to gravity, and ? is angle at which the pendulum is displaced from the perpendicular. What is the value of the restoring force when m = 0.9 kilogram and ? = 60°? If necessary, round the answer to the nearest tenth of a Newton.
A. 2.7 N
B. 7.6 N
C. 7.3 N
D. 4.4 N
Answer: B
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.1 7 10 15 24 22 19 14 8 39 11 15 23 17 10 4 9 14 19
A. 
B. 
C. 
D. 
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.- 
+ 
A. - 
B. - 
C. - 
D. - 1
Convert the angle from degrees to radians. Express your answer as a decimal rounded to two decimal places.114.3°
A. 1.98 radians B. 1.99 radians C. 2.00 radians D. 1.97 radians
Write a mathematical expression for the word phrase.Twelve is less than or equal to seventeen
A. 12 < 17 B. 12 ? 17 C. 12 ? 17 D. 12 ? 17