Physics, 16.05.2021 16:10 heavyhearttim
PLEASE HELP ME WITH THIS ONE QUESTION The frequency of violet light is 7.5 x 10^14 Hz. How much energy does a photon of violet light carry? (h = 6.626 x 10^-34 J·s; 1 eV = 1.60 x 10^-19 J)
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Physics, 22.06.2019 04:20
Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f
Answers: 1
Physics, 22.06.2019 07:10
1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?
Answers: 3
Physics, 22.06.2019 10:10
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
Physics, 22.06.2019 12:30
What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight
Answers: 3
PLEASE HELP ME WITH THIS ONE QUESTION
The frequency of violet light is 7.5 x 10^14 Hz. How much ene...
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