Physics
Physics, 07.12.2019 04:31, genyjoannerubiera

An electromagnetic wave traveling through space encounters an electron sitting at rest. upon being hit by the wave, which way will the electron move?

a. it will bob up and down with the crests and troughs
b. it'll be pushed entirely along the direction the wave is moving (perpendicular to the crests and troughs)
c. it won't move at all
d. it'll both bob up and down and be pushed along the direction the wave is moving

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 17:30, corynanderson16
The position of a dragonfly that is flying parallel to the ground is given as a function of time by rโƒ— =[2.90m+(0.0900m/s2)t2]i^โˆ’ (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
Answers: 1
image
Physics, 21.06.2019 19:40, drcarver
You carry a 7.0-kg bag of groceries 1.2 m above the ground at constant speed across a 2.7m room. how much work do you do on the bag in the process? (a) 157j (b) 0.00j (c) 185j (d) 82j
Answers: 2
image
Physics, 22.06.2019 02:00, llamasking
Chapter 23, problem 075 the figure shows a geiger counter, a device used to detect ionizing radiation (radiation that causes ionization of atoms). the counter consists of a thin, positively charged central wire surrounded by a concentric, circular, conducting cylindrical shell with an equal negative charge. thus, a strong radial electric field is set up inside the shell. the shell contains a low-pressure inert gas. a particle of radiation entering the device through the shell wall ionizes a few of the gas atoms. the resulting free electrons (e) are drawn to the positive wire. however, the electric field is so intense that, between collisions with gas atoms, the free electrons gain energy sufficient to ionize these atoms also. more free electrons are thereby created, and the process is repeated until the electrons reach the wire. the resulting "avalanche" of electrons is collected by the wire, generating a signal that is used to record the passage of the original particle of radiation. suppose the radius of the central wire is 24 รขยตm, the inner radius of the shell 2.3 cm, and the length of the shell 14 cm. if the electric field at the shell's inner wall is 2.8 ฤƒโ€” 104 n/c, what is the total positive charge on the central wire?
Answers: 1
image
Physics, 22.06.2019 02:00, browneyedbaby20
The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e
Answers: 3
Do you know the correct answer?
An electromagnetic wave traveling through space encounters an electron sitting at rest. upon being h...

Questions in other subjects: