A machine with a mass of 30 kg is mounted on springs with an equivalent stiffness of 4.8 104 N/m. During operation, it is subject to a force of 200 sin t. Determine and plot the response of the system if the machine is at rest in equilibrium when the forcing starts and at (a)

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

True or false graphs must include scales that increase by the same amount

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.