During convection, hot substances while cooler substances
a. rise; sink
b. sink; ris...
Physics, 19.11.2019 05:31 jessica28757
During convection, hot substances while cooler substances
a. rise; sink
b. sink; rise
c. rise; remain stationary
d. sink; remain stationary
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 01:30, Savageman4654
The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation
Answers: 2
Physics, 22.06.2019 10:00, unknown6669
Which type of basaltic lava flow has a fairly smooth
Answers: 2
Physics, 22.06.2019 10:00, kenna0
This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !
Answers: 1
Mathematics, 25.11.2019 06:31
Biology, 25.11.2019 06:31
History, 25.11.2019 06:31
History, 25.11.2019 06:31
English, 25.11.2019 06:31