10 electrons are in a water molecule. :)
I found this on google
<span>There are three main types of pulleys: fixed, movable, and compound. A fixed pulley's wheel and axle stay in one place. A good example of a fixed pulley is a flag pole: When you pull down on the rope, the direction of force is redirected by the pulley, and you raise the flag.</span>
The wavelength of violet light is given as 4.2x10^-7 m and the speed of light is 3x10^8 m/sec
The equation relating between the frequency and the wavelength is as follows:
speed of light = wavelength x frequency
Substitute with the givens in the above equation to get the frequency of violet light as follows:
frequency = (3 x 10^8) / (4.2 x 10^-7) = 7.14285 x 10^14 Hz
The threshold frequency of cesium is <span>9.39x10^14 Hz.
Since the frequency of violet light is less than the threshold frequency of cesium, therefore, the exposure to violet light won't </span><span>cause electrons to be emitted from cesium.</span>
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The closer the field lines, the stronger the field, whereas for electric field, the higher the electric flux passing through, the stronger the electric field.
Explanation:
Another difference between the two is that magnetic fields formed closed loops around the magnetic while electric fields do not. Electric fields are measured in two dimensional while magnetic fields in 3 dimensional. The electric field line can do work while magnetic fields can not (because particles in magnetic field remain constant even though the charge may change direction).
Learn More:
For more on electric and magnetic fields check out;
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