A spring with a force constant of 240 N/m is stretched 20 cm from its equilibrium position. Calculate the elastic potential energy stored in the spring.

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?