What is the reason eclipses do not happen every full moon and new moon

Which would be most reliable source for information about the toxity of an industrial chemical

amid [387]

For example, a trade secret may be a confidential device, pattern, information, or chemical make-up.Chemical industry trade secrets are generally formulas, process data, or a "specific chemical identity." The latter is the type of trade secret information referred to in the Hazard Communication Standard. The term includes

6 0

3 years ago

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A square plate of side 9 m is submerged in water at an incline of 60∘ with the horizontal. Its top edge is located at the surfac

Tpy6a [65]

Answer:

The force on one side of the plate is 3093529.3 N.

Explanation:

Given that,

Side of square plate = 9 m

Angle = 60°

Water weight density = 9800 N/m³

Length of small strip is

$y=\dfrac{\Delta y}{\sin60}$

$y=\dfrac{2\Delta y}{\sqrt{3}}$

The area of strip is

$dA=\dfrac{9\times2\Delta y}{\sqrt{3}}$

We need to calculate the force on one side of the plate

Using formula of pressure

$P=\dfrac{dF}{dA}$

$dF=P\times dA$

On integrating

$\int{dF}=\int_{0}^{9\sin60}{\rho g\times y\times 6\sqrt{3}dy}$

$F=9800\times6\sqrt{3}(\dfrac{y^2}{2})_{0}^{9\sin60}$

$F=9800\times6\sqrt{3}\times(\dfrac{(9\sin60)^2}{2})$

$F=3093529.3\ N$

Hence, The force on one side of the plate is 3093529.3 N.

7 0

3 years ago

Explain using the particle theory to explain how kinetic energy has a role in melting ice cream on a hot sunny day. HELP ME EXP

jeyben [28]

I have the same thing so if you have a teroy ok wat a thory mean is like wat you think about icecream are what ever so write down wat you thinck about ice cream

4 0

3 years ago

What is common to the terrestrial planets? A. equal rotational periods around the Sun B. thin crust and a dense iron core C. sol

Darya [45]

Answer:

I would say D. All terrestrial planets are made up of rock and minerals and the other planets are made up of that do not have a solid surface.

Answer D.

Explanation:

7 0

2 years ago

When humans look at the sky, it appears blue, but the Sun appears yellow. What causes this phenomenon?

otez555 [7]

Light behaves like a wave, and the different colors we perceive are the result of light hitting our eyes at different wavelengths. The air molecules in our atmosphere scatter this visible light, with a "preference" towards light of shorter wavelengths -- blue and violet light. Light of longer wavelengths (green, yellow, orange, red), doesn't pass through to us as visibly until later in the day, when the sun's light has more atmosphere to pass through before it reaches our eyes. The blue light becomes so scattered by the air molecules in its way at this point that we're finally able to see those yellows and reds coming through on our end.

6 0

3 years ago