If the total mechanical energy of a swinging pendulum is 75 J, and its mass is 5.0 kg, what is the maximum height reached?
Use g = 10 m/s2

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe

Mixing salt in water is an example of physical change