Physics, 22.03.2021 19:10 theresamarieuehling2
(A) If you treat an electron as a classical rigid sphere with radius 1.20×10^−17 m and uniform density, what angular speed ω is necessary to produce a spin angular momentum of magnitude √3/4 ℏ? Use h = 6.63×10^−34 J⋅s for Planck's constant, recalling that ℏ=h/2π, and 9.11×10^−31 kg for the mass of an electron. Express your answer in radians per second to three significant figures. (B) Use the equation v=rω relating velocity to radius and angular velocity together with the result of Part A to calculate the speed v of a point at the electron's equator. Express your answer in meters per second to three significant figures.
Answers: 2
Another question on Physics
Physics, 22.06.2019 06:50
Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.
Answers: 3
Physics, 22.06.2019 12:30
An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.
Answers: 1
Physics, 22.06.2019 23:30
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
Answers: 2
You know the right answer?
(A) If you treat an electron as a classical rigid sphere with radius 1.20×10^−17 m and uniform densi...
Questions
Geography, 18.02.2020 22:58
Mathematics, 18.02.2020 22:58
Spanish, 18.02.2020 22:59
