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➷ When electrons are lost, a positive ion is formed. This is because there are now more protons than electrons causing the overall charge to be positive.
When electrons are gained, a negative ion is formed. This is because there are now more electrons than protons causing the overall charge to be negative.
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Explanation:
<em>because</em><em> </em><em>magnet</em><em> </em><em>attract</em><em> </em><em>opposite</em><em> </em><em>sides</em><em>.</em><em> </em><em>like</em><em> </em><em>north</em><em> </em><em>and</em><em> </em><em>south</em><em>.</em>
(a) frequency of the wave
The electromagnetic wave travels at the speed of light:
. Since its wavelength is
, we can find the frequency of the wave by using the relationship between f,
and c:
(b) magnetic field amplitude
The relationship between the electric field amplitude E, the magnetic field amplitude B and the speed of light c for an electromagnetic wave is
And since we know E, by re-arranging the equation we can find the magnitude of B:
The statement which best explains why when you trip, your foot stops, but your body continues to move forward is: A. An unbalanced force stops your foot but does not act on the rest of your body.
A force can be defined as a push or pull of an object or a physical body, which typically results in a change of motion due to the interaction of the object with another.
In Physics, there are two (2) main types of force and these are:
An unbalanced force occurs when two or more forces acting on an object or a physical body are not equal in magnitude and as such, it typically results in a change of motion.
In conclusion, when you trip, your foot stops, but your body continues to move forward because an unbalanced force stops your foot but doesn't act on the other part of your body.
Read more: brainly.com/question/24307064