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sveticcg [70]
3 years ago
14

The diameter of earth is 12,756 km. How many times greater the suns diameter than the diameter of earth

Physics
1 answer:
olchik [2.2K]3 years ago
8 0
The Sun is 864,400 miles (1,391,000 kilometers) across. This is about 109 times<span> the diameter of Earth. The Sun weighs about </span>333,000 times<span> as much as Earth. It is so large that about 1,300,000 planet Earths can fit inside of it.</span>
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A dog pulls on a leash with a force of 15 23 is a big dog. The leash makes an angle of 36.7 degrees to the horizontal. What are
ch4aika [34]

Answer:

x = 12.027N and y = 8.964N

Explanation:

The first sentence of this question is not explanatory enough. However, I'll assume the force to be 15N

Force = 15N

\theta = 36.7 to the horizontal

Required

Solve for the x and y components

Since the given angle is to the horizontal, the x and y coordinates are calculated using the following illustrations.

Sin\theta = \frac{y}{Force} ---- y component

Cos\theta = \frac{x}{Force} ---- x component

Calculating the y component.

Substitute 15 for Force and 36.7 for \theta

Sin\theta = \frac{y}{Force} becomes

Sin(36.7) = \frac{y}{15}

Make y the subject

y = 15 * Sin(36.7)

y = 15 * 0.5976

y = 8.964N

Calculating the x component.

Substitute 15 for Force and 36.7 for \theta

Cos\theta = \frac{x}{Force} becomes

Cos(36.7) = \frac{x}{15}

Make y the subject

x = 15 * Cos(36.7)

x = 15 * 0.8018

x = 12.027N

<em>Hence, the x and y components of the force are: 8.964N and 12.027N respectively.</em>

6 0
3 years ago
soaring birds and glider pilots can remain aloft for hours without expending power. Discuss why this is so.
vekshin1

Answer:

Since their wings and body develop the drag. When there is warm air then they expand their wings. Since,soaring birds and glider pilots have no engine, they always maintain their high speed to lift their weight in air for hours without expending power by convection

Explanation:

5 0
3 years ago
How much voltage (in terms of the power source voltage bV) will the capacitor have when it has started at zero volts potential d
Archy [21]

Answer:

The voltage is   V =   0.993V_b

Explanation:

From the question we are told that

   The time that has passed is  t = \frac{\tau}{2}

 Here \tau is know as the time constant

    The voltage of the  power source is   V_b

Generally the voltage equation for charging a capacitor is mathematically represented as

       V =  V_b  [1 - e^{- \frac{t}{\tau} }]

=>   V =  V_b  [1 - e^{- \frac{\frac{\tau}{2}}{\tau} }]

=>   V =  V_b  [1 - e^{- \frac{\tau}{2\tau} }]

=>   V =  V_b  [1 - e^{- \frac{1}{2} }]

=>   V =   0.993V_b    

5 0
3 years ago
Earth can be modeled with five layers based on the strengths and physical properties of the materials in them. Put the layers in
andre [41]

Answer:

Crust, Upper mantle, mantle, outer core, inner core

Explanation:

The Earth's layers have been clasified in 5 according to the materials that conform them, theri physical properties, strengths and also their state of matter. We all know how the outer layer of the Earth looks like, but if we start to dig a huge hole we are going to see different types por materials due to a change in pressure, temperature, and other factors. At the very center of the Earth there's what's called "core". The core is liquid and at extremely high temperatures. This is because of the enormous amount of pressure the rest of the Earth is putting it under. So, if we list the different layers of the Earth according to the materials they are made of, from the Earth's surface to the core, the answer is:

1) Crust (surface)

2) Upper Mantle

3) Mantle

4) Outer core

5) Inner core

In some books you may find a layer called Lithosphere. Tis layer consists not only of the crust, but also it contains the transition zone between the upper mantle and the crust.

4 0
3 years ago
In a double-slit experiment, light from two monochromatic light sources passes through the same double slit. The light from the
Dmitrij [34]

Answer:

\lambda_2 = 573.3 nm

Explanation:

As we know that the position of maximum intensity on the screen is given as

y = \frac{N\lambda L}{d}

here we know that

\lambda = wavelength

L = distance of the screen

d = distance between two slits

now we know that the position of 8th maximum intensity is same as that of 9th maximum on the screen

so we have

\frac{N_1\lambda_1 L}{d} = \frac{N_2 \lambda_2 L}{d}

so here we have

8 (645 nm) = 9 \lambda_2

\lambda_2 = 573.3 nm

4 0
3 years ago
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