In the previous part, you discovered that the trajectory of an object does not depend on the object's size or mass. but if you have ever seen a parachutist or a feather falling, you know this isn't really true. that is because we have been neglecting air resistance, and we will now study its effects here. select air resistance for the simulation. fire a baseball with an initial speed of roughly 20 m/s and an angle of 45∘. compare the trajectory to the case without air resistance. how do the trajectories differ?

Abird sitting high in a tree is an example of what type of wnergy

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?

Awalk up the phase change graph worksheet