Refer to the image shown to answer the question.
if a light ray strikes the shiny surface at 70 degrees, what is the measurement of the reflected ray?
a. 170 degrees
b. 110 degrees
c. 70 degrees
d. 10 degrees

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg