Question 14 of 20
1 Point
Which of the following best describes significant figures?
O
A. The exactness of a measurement
O
B. The digits in a quantity that are known with certainty, plus one
estimated digit
C. How close a measured quantity is to its actual value
O
D. An approximate guess or rough calculation

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?