A baseball with a mass of 0.8 kg is given an acceleration of 20m/s.how much force was applied to the ball

you read in an astronomy book that our milky way galaxy consists of about 200 billion stars. how do you suppose this number was

lapo4ka [179]

By utilizing a galaxy model that accurately explains all of the data that has been collected thus far.

<h3>Suppose it turns out that one in 1 million stars has a planet that at some point in its history is home to an advanced civilization. Then the total number of civilizations that have arisen in our galaxy would be closest to _____. Assume there are about 100 billion stars in the Milky Way galaxy.</h3>

It has been estimated that our galaxy has something close to 100,000 different civilizations.A galaxy is a collection of stars (or solar systems), gas, and dust that is located in a certain area of the universe.

It has been suggested that the Milky Way, the galaxy in which we reside, is replete with extinct civilizations.In conclusion, there are probably close to 100,000 civilizations in our galaxy as a whole.

To learn more about Milky Way Galaxy , visit :

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6 0

2 years ago

A capacitor has plates of area 1.64 * 10 ^ - 3 * m ^ 2 . To create a capacitance of 2.38 * 10 ^ - 9 * F , how far apart should t

lesya692 [45]

Answer:

6.1 * 10^-6

Explanation:

Acellus

6 0

3 years ago

You're caught running a red light on Hwy 316. Attempting to impress the skeptical patrol officer with your physics knowledge, yo

timurjin [86]

Answer:

Explanation:

We shall apply here Doppler's effect in optics . The formula is as follows

$\frac{\triangle\lambda }{\lambda } = \frac{v}{c}$

Δλ is change in wavelength , λ is original wavelength , v is velocity and c is velocity of light

Δλ = 685 - 590 = 95 nm

λ = 685

95 / 685 = v / 3 x 10⁸

v = .416 x 10⁸ m / s

= 4.16 x 10⁷ m /s

3 0

3 years ago

A hill that has a 15.5% grade is one that rises 15.5 m vertically for every 100.0 m of distance in the horizontal direction. At

Andreas93 [3]

The angle of incline of the hill above the horizontal is 8.81°.

Since the hill has a 15.5% grade is one that rises 15.5 m vertically for every 100.0 m of distance in the horizontal direction.

<h3>Tangent of the angle of the incline of the hill,</h3>

The tangent of the angle of the incline of the hill, Ф is

tanФ = vertical rise/horizontal distance = grade of hill

Now, the vertical rise = 15.5 m and the horizontal distance = 100.0 m

So, substituting the values of the variables into the equation, we have

tanФ = vertical rise/horizontal run

tanФ = 15.5 m/100.0 m

tanФ = 0.155

<h3>Angle of incline of the hill</h3>

Taking inverse tan of both sides, we have

Ф = tan⁻¹(0.155)

Ф = 8.81°

So, the angle of incline of the hill above the horizontal is 8.81°.

Learn more about angle of incline of a hill here:

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6 0

2 years ago

Can somebody re-answer the true and false questions!!!

stiv31 [10]

Answer:

I think no 3 is false

and 4 is true

and the the ones you did are correct

if wrong correct me pls

7 0

3 years ago

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