The first form of electric communication was called Morse Code. It uses long and short electric pulses (beeps) to encode letters. It is still used today.
According to Coulomb’s Law, the force will quadruple.
However…
Let’s assume, for the sake of argument, that both proton and electron behave entirely like particles.
The trajectory of the electron will stretch, and its distance from the nucleus will oscilate until is estabilizes again at the original value.
The work done in the spring is calculated to be 2.8 J
<h3>What is Hooke's law?</h3>
Hooke's law states that, the extension of a given material is directly proportional to the applied force as long as the elastic limit is not exceeded . First, we must bear in mind that the material must remain within the elastic limit for us to apply the Hooke's law in solving the problem.
Now;
From Hooke's law;
F = Ke
F = force applied
K = force constant
e = extension
F = W = mg = 2.50 - kg * 9.8 m/s^2 = 24.5 N
K = 24.5 N/ 2.76 * 10^-2
K = 888 N/m
e = F/K
F = W = 1.25 - kg * 9.8 m/s^2 = 12.25 N
e = 12.25 N/ 888 N/m = 0.014 m or 1.4 cm
Work done by an external agent = 1/2 Kx^2
= 0.5 * 888 * (8 * 10^-2)^2
= 2.8 J
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Answer:
Explanation:
in some reactions we see this as a change in the temperature. ... The study of energy changes (particularly heat) in chemical reactions is known as ... When a chemical reaction occurs, bonds in the reactants break, while new bonds form in the product. ... Physical changes can also be classified as exothermic or endothermic.