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3 years ago

Why does data need to be reliable

Physics

2 answers:

Karolina [17]3 years ago

8 0

So results can be shared and used by other scientists that want to use or replicate your experiment.

Softa [21]3 years ago

5 0

So that the experiment can be replicated and the results can be the same

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3 things that Gravity affects

slamgirl [31]

Answer: See explanation

Explanation:

Gravity is simply referred to as the force of attraction between two particles or masses. Through gravity, the moon moves round the Earth.

Gravity also causes a fruit to fall from its tree. It can also cause an object to roll and fall from the table to the ground. In gravity, distance and mass are vital.

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3 years ago

How do energy transformations occur in a hydroelectric plant?

Tresset [83]

Energy transformation occurs in a hydroelectric plant by converting the energy of water into electricity.

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4 years ago

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Why is net force a vector sum A.All forces have direction and magnitude B.Forces can only be attractive C.All forces are contact

Alexus [3.1K]

Answer:

Explanation:

Forces are vector quantities because they have both magnitude and direction.

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3 years ago

In Young's double slit experiment, 427 nm light gives a fourth-order bright fringe at a certain location on a flat screen. What

anastassius [24]

Answer:

λ' = 379.22nm

Explanation:

In order to find the longest wavelength that allows one to dark fringe coincides with the bright fringe, you use the following formulas:

$y_{bright}=\frac{m\lambda D}{d}$ (1)

$y_{dark}=(m+\frac{1}{2})\frac{\lambda' D}{d}$ (2)

y-dark and y-bright are the positions of dark fringes and bright fringes respectively.

m: order of the fringe (dark or bright) = 4

D: distance to the screen

d: distance between slits

λ: light for y-bright= 427nm

λ': second light for y-dark = ?

By the information of the statement you know that y-bright = y-dark.

You divide equation (2) into the equation (1) and solve for λ':

$\frac{y_{dark}}{y_{bright}}=1=\frac{(m+1/2)\lambda'}{m\lambda}\\\\\lambda'=\frac{m\lambda}{m+1/2}$ (3)

Finally, you solve the equation (3) by replacing the values of m and the wavelength:

$\lambda'=\frac{4(427nm)}{4+1/2}=379.55nm$

The longest wavelength which produces the fourth dark fringe in the same location for the fourth bright fringe of the first wavelength is 379.22nm

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4 years ago

How much work would be needed to raise the payload from the surface of the moon (i.e., x = r) to the "end of the universe"?

meriva

Moon was rotation Earth or sun
it's own orbit . universe is not end

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4 years ago

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