Physics, 05.08.2019 18:30 ridjebeberjejej7502
Alight source of wavelength \lambdaλ illuminates a metal with a work function of \text{be} = 2.00 ~\text{ev}be=2.00 ev and ejects electrons with a maximum ~\text{ke} = 4.00 ~\text{ev} ke=4.00 ev. a second light source with double the wavelength of the first ejects photoelectrons with what a maximum kinetic energy?
Answers: 3
Physics, 22.06.2019 07:00, jeremiahphillip4396
The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.
Answers: 1
Physics, 22.06.2019 16:30, safiyyahrahman6907
One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.
Answers: 1
Physics, 22.06.2019 16:30, skiddymark3ox93za
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
Alight source of wavelength \lambdaλ illuminates a metal with a work function of \text{be} = 2.00 ~\...
Mathematics, 11.12.2020 02:00
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