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➷ A normal atom has the same amount of electrons and protons, making it neutral. An atom develops a positive charge when it loses an electron(s). Once it loses an electron(s), there would now be more protons that electrons.
Short answer: by losing an electron(s)
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Answer:
is weaker than the electromagnetic force
Explanation:
The weak force or weak nuclear force acts between elementary particles.
Weak nuclear force is important in the reaction speed of some nuclear reactions that occur in stars. It is also present at the origin of volcanic explosions.
The weak force is a short-range force, less than a billionth of a millimeter: 10-13mm. At a greater distance, the intensity of this force is already negligible.
If the weak force had a value of 1,
the electromagnetic force would have a value of 1,000
and the strong force would be worth 100,000,000,000
Although it is vastly weaker than the other two nuclear forces, the weak force is important in that it enables the Sun and stars to produce light and energy.
The weak force causes a type of radioactive decay called "beta decay." An example of beta decay is the decay of the neutron when it becomes 1 proton + 1 electron + 1 neutrino
Answer:
137.8 N
Explanation:
First we need to find the acceleration of the sprinter. To do so, we can use the Torricelli's equation:
V^2 = Vo^2 + 2*a*S
9^2 = 2^2 + 2*a*25
81 = 4 + 50a
50a = 77
a = 77/50 = 1.54 m/s2
Now, to find the resulting force in the sprinter, we can use the following equation:
Force = mass * acceleration
Force = 70 * 1.54 = 107.8 N
If we have a 30 N force against the sprinter, the total force applied is:
Resulting force = Applied force - Wind force
107.8 = Applied force - 30
Applied force = 137.8 N
Answer a) is incorrect as sound does not travel in a vacuum.
Please find attached photograph for your answer.
