___ devices need constant power to operate. The timing functions are initiated by the presence or absence of a separate ""trigger"" signal.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass