5. the volume of physical activity attained by an individual who exercises at a level of 7 mets for 35 min · day-1, 4 days · wk-1 would be equal to met-min per week.
a. 140
b. 280
c. 560
d. 980

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

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.

Explain why electric current cannot exist if a current doesn't have a voltage source.