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2 years ago

8

Suppose the gravitational force between two spheres is 30 N. If the magnitude of both masses doubles, and the distance between t

hem tripled. What is the force between the masses?

1 answer:

mixer [17]2 years ago

8 0

Answer:

60 N

Explanation:

because when we double the 30N, we will get 60N as a force

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Describe three societal needs that drive scientific endeavor and give an example of a scientific endeavor associated with each.

Trava [24]

The answer is:

1. Cure disease

2. Improve livelihoods

3. Understand nature and themselves.

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2. Humans use science to improve livelihoods such as means of faster traveling and increasing yields in the fields

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What is the maximum value of the magnetic field at a<br> distance2.5m from a 100-W light bulb?

MA_775_DIABLO [31]

To solve this problem we will apply the concepts related to the intensity included as the power transferred per unit area, where the area is the perpendicular plane in the direction of energy propagation.

Since the propagation occurs in an area of spherical figure we will have to

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$I = \frac{P}{4\pi r^2}$

Replacing with the given power of the Bulb of 100W and the radius of 2.5m we have that

$I = \frac{100}{4\pi (2.5)^2}$

$I = 1.2738W/m^2$

The relation between intensity I and $E_{max}$

$I = \frac{E_max^2}{2\mu_0 c}$

Here,

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Rearranging for the Maximum Energy and substituting we have then,

$E_{max}^2 = 2I\mu_0 c$

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Finally the maximum magnetic field is given as the change in the Energy per light speed, that is,

$B_{max} = \frac{E_{max}}{c}$

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2 years ago

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Marta_Voda [28]

Answer:

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given,

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