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2 years ago

~!Here's the question!~

Physics

2 answers:

vazorg [7]2 years ago

8 0

The correct answer is A) Gravity. Hope this helps.

gtnhenbr [62]2 years ago

6 0

The answer would most likely be A since obviously gravity weighs things down which helps the every other masses stay settled in place

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Please help. I need help with the questions on this page.

DaniilM [7]

Try looking up facts about physics or referring back to your notes in class. :)
6025loveteal

4 0

2 years ago

I NEED HELP PLEASE, THANKS! Light passes from air into water at an angle of 40.0° to the normal. What is the angle of refraction

Vlad [161]

Answer:

Angle of Refraction = 28.9 degrees

Explanation:

We'll use Snell's law for this. It's mathematical form is:

=> $n_1* sin(\alpha _1)=n_2 * sin(\alpha _2)$

Where $n_{1} = 1, n_{2} = 1.33, \alpha _{2} = 40^o$

=> $n_{1}$ and $n_{2}$ are the refractive indexes of the air and water respectively.

Solution:

=> 1 * sin (40) = 1.33 * sin( $\alpha _{2}$ )

=> sin $\alpha _{2}$ = $\frac{sin 40^0}{1.33}$

=> sin $\alpha _{2}$ = 0.4821

=> $\alpha _{2}$ = 28.9 degrees

8 0

2 years ago

A beaker of vegetable oil contains a beam of light that is aimed at a surface at an angle of 34 degrees as shown. If the index o

Over [174]

Answer:

Angle of reflection of light is 34 degree

Explanation:

As per law of reflection of light we know that

angle of incidence of light = angle of reflection of light

So here we know that

angle of incidence on the surface of oil is given as

$\theta_i = 34 degree$

so we know that

$\theta_i = \theta_r$

so here we can say that reflection angle of light will be same as angle of incidence

$\theta_r = 34 degree$

4 0

2 years ago

What’s better csp or pv ?

BARSIC [14]

Answer:

CSP

Explanation:

CSP systems store energy through Thermal Energy Storage technologies (TES), so power can be used when there isn't enough sunlight. PV systems, however, can't store thermal energy because they use direct sunlight, rather than heat. For this reason, CSP systems are better for energy storage and efficiency.

8 0

1 year ago

Explain why understanding bonding is important for understanding molecules.

matrenka [14]

Bond polarity is important because it helps to determine the polarity of molecules and hence their physical properties.

6 0

2 years ago

~~~!Here's the question!~~~

~!Here's the question!~