Answer:
D. Current with not flow through a wire if the magnet is outside the coil.
Explanation:
have a good day
Answer:
f something happens to go wrong at a nuclear reactor, anyone living in a 10-mile radius of the plant may have to evacuate. This map also shows a 50-mile evacuation zone, the safe distance that the U.S. government recommended to Americans who were near
because
In a string of length L, the wavelength of the n-th harmonic of the standing wave produced in the string is given by:
The length of the string in this problem is L=3.5 m, therefore the wavelength of the 1st harmonic of the standing wave is:
The wavelength of the 2nd harmonic is:
The wavelength of the 4th harmonic is:
It is not possible to find any integer n such that , therefore the correct options are A, B and D.
Answer:
the distance should be changed by a factor of √2
Explanation:
The attractive force between the couples can be given by Newton's Law of Gravitation:
where,
F = Attractive Force
G = Universal Gravitational Constant
m₁ = mass of the first person
m₂ = mass of the second person
r = distance between them
Now, if we want to halve the force without changing masses, hen:
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<u>Hence, it is clear that the distance should be changed by a factor of √2</u>