Physics, 13.03.2020 01:18 devaughnnorthcu1565
An object in free fall is dropped from a building. Its starting velocity is 0 m/s. Ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds
Answers: 1
Physics, 21.06.2019 22:00, Angelo1660
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?
Answers: 3
Physics, 22.06.2019 23:00, Neko1kat
Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings
Answers: 1
An object in free fall is dropped from a building. Its starting velocity is 0 m/s. Ignoring the effe...
Mathematics, 29.06.2019 17:30
Mathematics, 29.06.2019 17:30
Physics, 29.06.2019 17:30
Biology, 29.06.2019 17:30
Physics, 29.06.2019 17:30