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(II) Two children are sending signals along a cord of total mass 0.50 kg tied between tin cans with a tension of 35 $\mathrm{N}$ . It takes the vibrations in the string 0.50 $\mathrm{s}$ to go from one childto the other. How far apart are the children?

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18$m$

Physics 101 Mechanics

Physics 102 Electricity and Magnetism

Chapter 15

Wave Motion

Periodic Motion

Mechanical Waves

Electromagnetic Waves

University of Michigan - Ann Arbor

University of Washington

Hope College

McMaster University

Lectures

03:40

In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays. Electromagnetic waves of different frequency are called by different names since they have different sources and effects on matter. In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

10:59

In physics, Maxwell's equations are a set of partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, and electric circuits. They underpin all electric, optical and radio such electromagnetic technologies as power generation, electric motors, wireless communication, cameras, televisions, computers, and radar. Maxwell's equations describe how electric and magnetic fields are generated by charges, currents, and changes of these fields. The equations have two major variants. The microscopic Maxwell equations have universal applicability but are unwieldy for common calculations. They relate the electric and magnetic fields to total charge and total current, including the complicated charges and currents in materials at the atomic scale. The macroscopic Maxwell equations define two new auxiliary fields that describe the large-scale behaviour of matter without having to consider atomic scale details. The equations were published by Maxwell in his 1864 paper "A Dynamical Theory of the Electromagnetic Field". In the original paper Maxwell fully derived them from the Lorentz force law (without using the Lorentz transformation) and also from the conservation of energy and momentum.

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(II) Two children are send…

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Two children are sending s…

01:55

Two children are playing w…

02:35

(II) A $0.40-\mathrm{kg}$ …

02:00

(II) $\mathrm{A} .0 .40$ -…

02:56

(II) A guitar string is 90…

02:30

A 0.40-kg cord is stretche…

03:32

A guitar string is 92 cm l…

01:54

(II) A cord of mass 0.65 $…

01:15

Two children stretch a jum…

02:28

A $14.0 \mathrm{~m}$ cord…

03:03

A distance of 5.00 cm is m…

02:50

of mass $3 \mathrm{~kg}$ i…

00:44

A uniform pole of length 2…

01:49

A brother and sister try t…

03:57

If a bungee cord is stretc…

02:13

A 75.0-cm-long wire of mas…

02:46

$\mathrm{A} 75.0 \mathrm{~…

02:32

(II) $\mathrm{A}$ cord of …

you know that the formula for the speed is equal to travel distance developed by time and in waves. We know that it's good is equal to little TV New Now we have to find the distance between the Children. Supposed distance between Children is D so d will be equal toe. We is feeding two times We know we can write a speed. Is it called TV? I'm you into p No is quitting from both sides In this equation, we can write The square is equal toe TV. I'm you in two p Square's and we know that musical to embody. So from here you can write the square into mule which is anybody is equal toe p tension in to Times Square Now here you can be physical toe tension into Times Square divided way um so we can write tension Is 35 Newton here in the time 0.5 seconds the mosque is given, which is 0.50 k g. So the distance between teaching them by calculating this is equal to 18 m

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