Velocity vs time graph time (sec) displacement (m) velocity (m/s) 0 0 0 0.5 1.25 5 1 5 10 1.5 11.25 15 how is the acceleration related to the time for the data table? a) the acceleration is a constant. b) the acceleration is constantly decreasing. c) the acceleration is constantly increasing. d) the acceleration cannot be determined from this data.

Air is held within a frictionless piston-cylinder container, which is oriented vertically. the mass of the piston is 0.45 kg and the cross-sectional area is 0.0030 m2. initially (state 1) the pressure of the gas is sufficient to support the weight of the piston as well as the force exerted by the atmospheric pressure ( 101.32 kpa). the volume occupied by the air within the cylinder in state 1 is 1.00 liter. one end of a spring (with spring constant k = 1000 n/m) is attached to the top of the piston, while the other end of the spring is attached to a stage that can move vertically. initially the spring is undeflected and therefore exerts no force. then the stage is then moved quasistatically downward a distance of 10.0 cm, at which point the system reaches state 2. the piston-cylinder is not insulated; rather it remains in diathermal contact with the surroundings, which are at a constant temperature of 300 k. what is the change of pressure within the container?

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?