Physics, 19.11.2019 06:31 jdmXdude3140
Aphoton moving in the +x-direction, scatters off a free stationary electron. the wavelength of the incident photon is 0.0250 nm. after the collision, the electron moves at an angle α below the +x-axis, while the photon moves at an angle θ 65.3° above the +x-axis. (for the purpose of this exercise, assume that the electron is traveling slow enough that the non-relativistic relationship between momentum and velocity can be used.) (a) what is the angle α (in degrees)? o counterclockwise from the +x-axis (b) determine the speed of the electron (in m/s) m/s
Answers: 2
Physics, 21.06.2019 22:50
Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]
Answers: 2
Physics, 22.06.2019 05:50
Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference
Answers: 1
Physics, 22.06.2019 07:30
30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
Answers: 1
Physics, 22.06.2019 13:20
Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
Answers: 1
Aphoton moving in the +x-direction, scatters off a free stationary electron. the wavelength of the i...
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