An electron has a mass of 9.109 x 10 kg. A positron is a positively charged particle with the same mass as an electron. When an electron and positron collide, they annihilate to convert all their mass into energy. . How much energy is released by the reaction of 1 mole of electrons and a positrons
Answers: 2
Physics, 22.06.2019 02:00, evarocks352
How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?
Answers: 3
Physics, 22.06.2019 05:00, hihihi129473838
Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
Answers: 3
Physics, 22.06.2019 06:30, jordanbyrd33
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
An electron has a mass of 9.109 x 10 kg. A positron is a positively charged particle with the same m...
Mathematics, 23.03.2021 21:20
Mathematics, 23.03.2021 21:20
Mathematics, 23.03.2021 21:20
Mathematics, 23.03.2021 21:20
Mathematics, 23.03.2021 21:20