Ablock with mass m =7 kg is hung from a vertical spring. when the mass hangs in equilibrium, the spring stretches x = 0.29 m. while at this equilibrium position, the mass is then given an initial push downward at v = 4.1 m/s. the block oscillates on the spring without friction.
image for a block with mass m =7 kg is hung from a vertical spring. when the mass hangs in equilibrium, the spring stret
1) what is the spring constant of the spring?
2) what is the oscillation frequency?
3) after t = 0.39 s what is the speed of the block?
4) what is the magnitude of the maximum acceleration of the block?
5) at t = 0.39 s what is the magnitude of the net force on the block?

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.