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4 years ago

5

The following is current scientific evidence supporting the nebular theory on the formation of the solar system.

2 answers:

tatyana61 [14]4 years ago

7 0

A the answer
hope it helps

Feliz [49]4 years ago

4 0

A.the composition of the inner and outer planets, current observations of star formation, and the motion of the solar system I hope this helps

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Which two concepts are Newton´s laws based on?

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Instantaneous impulse and continuous force: these are the foundations of Newton laws. In short explanation; concept of force and mass.

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3 years ago

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Describe the difference between weather and climate.

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Weather is the condition of the atmosphere at a particular place and time

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3 years ago

What is the volume of this bubble when it reaches the surface?

steposvetlana [31]

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3 years ago

Using the formula d = rt, calculate the distance a car would travel at 80 mph for 2.5 hours.

hoa [83]

Using the formula,

$d= v \times t$

Here, d is distance, v is the velocity and t is time.

Given, $v = 80 \ mile /hour$ and $t = 2.5 \ hour$ .

Substituting these values in above formula, we get

$d = 80 \ mile /hour \times 2.5 \ hour = 200 \ miles$

Thus, the distance traveled by the car is 200 miles

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3 years ago

A simple generator has a square armature 9.0 cm on a side. The armature has 95 turns of 0.59-mm-diameter copper wire and rotates

Marrrta [24]

Answer:

f = 3.102 Hz

Explanation:

In this case you have that the required voltage is the maximum induced emf produced by the rotating generator.

In order to calculate the frequency of rotation of the generator that allows one to obtain 12.0V you use the following formula:

$emf_{max}=NBA\omega$ (1)

N: turns of the armature = 95

B: magnitude of the magnetic field = 0.800T

A: area of the square armature = (9.0cm)^2 = (0.09m)^2 = 8.1*10^-3 m^2

emf_max = 12.0V

w: angular frequency

you solve the equation (1) for w:

$\omega=\frac{emf_{max}}{NBA}=\frac{12.0V}{(95)(0.800T)(8.1*10^{-3}m^2)}\\\\\omega=19.49\frac{rad}{s}$

Then, the frequency is:

$f=\frac{\omega}{2\pi}=\frac{19.49rad/s}{2\pi}=3.102Hz$

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3 years ago