If the wavelength is changed to λ/2, does the central spot remain bright, does the central spot become dark, or do the fringes d
1 answer:
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Answer:
1.63
Explanation:
The equation would be used where:
g = acceleration due to gravity
G = universal gravitational constant (6.67408 ×
)
M = mass
R = radius.
assuming the values following both 10s of the mass and radius are their exponents, which is a little confusing, the values given would simply be substituted.
Anyone can correct me if I'm wrong.
If the elevator was stationary, the scale would read exactly the weight of the person:
However, the elevator is moving with an acceleration a, so the scale reads a new value of the weight, which we call W'. Newton's second law becomes
where a' is actually the total acceleration of the person, so it's the sum of the acceleraion of the elevator and of the gravitational acceleration:
Taking the direction of g (downward) as the positive direction, we can find the value of a:
So, the acceleration of the elevator is
, with same sign of g, so it's directed downward as well.
However, the elevator is moving with an acceleration a, so the scale reads a new value of the weight, which we call W'. Newton's second law becomes
where a' is actually the total acceleration of the person, so it's the sum of the acceleraion of the elevator and of the gravitational acceleration:
Taking the direction of g (downward) as the positive direction, we can find the value of a:
So, the acceleration of the elevator is