Two ice skaters, Lilly and John, face each other while stationary and push against each others hands. John's mass is twice the mass of Lilly. How do their speeds compare after the push offs?

A runner starts from rest and accelerates uniformly to a speed of 8.0 meters per second in 4.0 seconds. The magnitude of the acceleration of the runner is O 32 m/s/s o 9.8 m/s/s O 2.0 m/s/s O 0.50 m/s/s

Satellite A orbits the earth at a height 3.00 times the earth's radius. Satellite B orbits the earth at a height 2.00 times the earth's radius.

A medium with two fixed ends has a length of 1.2 m. What is the wavelength of the third harmonic?

A weight of 20.0 N hangs motionless from a spring, with a spring constant of 65.0 N/m. How far is the spring stretched from its original length? 0.130 m 0.308 m 0.769 m 3.25 m

Which is the lowest part of a transverse wave below the rest position

What path does energy travel as it changes from kinetic to electrical energy in a hydroelectric plant

An apple falls from a tree and hits the ground 9.98 m below. with what speed will it hit the ground

Jamal wanted only to test the effect of the free fall and so he put his system in a vacuum to prevent air resistance. In free fall, will the crumpled or flat paper reach the ground first? The crumpled paper will reach the ground first.

What coefficients would balance the following equation? __Al + __O2 → __Al2O3 A. 2Al + 3O2 → 1Al2O3 B. 2Al + 3O2 → 2Al2O3 C. 3Al + 3O2 → 2Al2O3 D. 4Al + 3O2 → 2Al2O3

What do we call the quantity force multiplied by distance