In a physics lab, you attach a 0.200-kg air-track glider tothe end of an ideal spring of negligible mass and start itoscillating. the elapsed time from when the glider first movesthrough the equilibrium point to the second time it moves throughthat point is 2.60 s. find the spring's force constant.

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

What happens to an isotope during radioactive decay?