Kelvin on a cliff 20 m above the ground throws a rock horizontally with a velocity of 20 m/s [East]. a) This is an example of what type of motion?
b) How long will the rock be in the air?
c) How far away will the rock land from the base of the cliff?

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?

Avalue that describes how heavy an object is and is related to the force of gravity is

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes