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2 years ago

Which state is the smartest state?

Physics

2 answers:

anygoal [31]2 years ago

8 0

Answer:

New Hampshire

New York.

Virginia.

Minnesota.

Connecticut.

Vermont

New Jersey.

Massachusetts.

Anit [1.1K]2 years ago

4 0

Answer:

Minnesota

Explanation:

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A Cassegrain telescope

yuradex [85]

The answer is D.

Hope this helps and have a good day :D

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2 years ago

Which fact about the moon, as seen from the earth, is evidence that the amount of time the Moon takes to complete one rotation a

Cerrena [4.2K]

Choice ' c ' is the evidence.

6 0

2 years ago

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In the fall of 2002, a group of scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237

Llana [10]

The concepts required to solve this problem are those related to density, as a function of mass and volume. In turn, we will use the geometric concept defined for the volume.

The relationship between volume, density and mass is given under the function

$\rho = \frac{m}{V}$

Here,

m = Mass

V = Velocity

Rearranging for the Volume,

$V = \frac{m}{\rho}$

With our information the volume is

$V = \frac{60kg}{19.5g/cm^3 (\frac{10^3kg/m^3}{1g/cm^3})}$

$V = 3.0769*10^{-3}m^3$

Now the volume of sphere is expressed as

$V = \frac{4}{3} \pi r^3$

Here r is the radius of Sphere, then rearranging to find the radius we have

$r = \sqrt[3]{\frac{3V}{4\pi}}$

$r = \sqrt[3]{\frac{3(3.0769*10^{-3})}{4\pi}}$

$r = 0.0902m$

Therefore the radius of a sphere made of this material that has a critical mass is 9.02cm

8 0

2 years ago

If Earth had twice the mass it has now, how would the gravitational force between it and the Sun change?

zhenek [66]

Answer:

a)The gravitational force would be twice as much as it is now

Explanation:

If the earth had twice its mass as it is now, the gravitational force between the sun and the earth would be twice as much as it is now.

According to Newton's law of universal gravitation "the gravitational force of attraction between bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between them".

F $_{g}$ = $\frac{G m _{e} m _{s} }{r^{2} }$

G is the universal gravitation constant

m is the mass

r is the distance

let mass of sun = s

mass of earth = e

new mass of sun = s

new mass of sun = 2e

input variables;

F = $\frac{Gx e x s}{r^{2} }$ ------ i

F = $\frac{G x s x 2e}{r^{2} }$ ------- ii

From the second equation;

2F = $\frac{Gx e x s}{r^{2} }$

2F = F

Therefore, the force will double.

7 0

3 years ago

Explain how your weight can change even though your mass remains the same.

lara31 [8.8K]

Answer:

See explanation below

Explanation:

Recall that Weight is a Force that results from the action of a gravitational field on our body mass. Therefore if one changes locations to places where the acceleration of gravity is different, our weight can change although the mass of our body stays the same.

For example, going to a high mountain, where the acceleration of gravity is a little smaller than at sea level, will produce such change. Also, going to another planet with different gravitational field, or going to the Moon (where the acceleration of gravity is about 1/6 of that on Earth which therefore will reduce our weight without reducing our mass)

6 0

2 years ago

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