Physics, 04.02.2020 04:02 lkipjjjjjjjjjj2272
Acharge q moves from point a to point b in an electric field. the potential energy of the charge at point a is 5.6 × 10-10 joules and that at point b is 2.3 × 10-10 joules. if the kinetic energy at point a is zero, what is the kinetic energy at point b?
5.6 × 10-12 joules
1.3 × 10-12 joules
2.3 × 10-12 joules
3.3 × 10-10 joules
5.6 × 10-10 joules
Answers: 1
Physics, 21.06.2019 22:00
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 06:30
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
Physics, 22.06.2019 09:00
Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?
Answers: 3
Physics, 22.06.2019 10:50
Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k
Answers: 1
Acharge q moves from point a to point b in an electric field. the potential energy of the charge at...
Mathematics, 25.08.2019 19:00
Biology, 25.08.2019 19:00
Mathematics, 25.08.2019 19:00
Geography, 25.08.2019 19:00
Mathematics, 25.08.2019 19:00
Mathematics, 25.08.2019 19:00
Biology, 25.08.2019 19:00
Mathematics, 25.08.2019 19:00
Mathematics, 25.08.2019 19:00
History, 25.08.2019 19:00
English, 25.08.2019 19:00
Computers and Technology, 25.08.2019 19:00
English, 25.08.2019 19:00
Geography, 25.08.2019 19:00