3 years ago

What determines whether an object will scatter light or reflect light?

Physics

1 answer:

Lady bird [3.3K]3 years ago

4 0

Scatter light doesn't reflect, reflect light goes off a mirror.

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How many "big c" calories does it take to raise the temperature of 2.00 l of water from 22.0 c to 40.0 c?

nignag [31]

given that

mass of water = 2 L = 2000 gram

now we can use

heat required to raise the temperature

$Q = mC\Delta T$

C = 1 cal/g C

$\Delta T = 40 - 22 = 18$

now from above formula

$Q = 2000* 1 * 18$

$Q = 36000 Cal$

so above is the heat required to raise the temperature

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4 years ago

For an object to be classified as a ____, it must meet certain definite criteria: It must be massive enough to pull itself into

Orlov [11]

Answer:

a planet

Explanation:

a planet is one which exerts these properties and therefore is the answer

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4 years ago

A student fills a tank of radius r with water to a height of h1 and pokes a small, 1.0 cm diameter hole at a distance h2 from th

Alik [6]

when a hole is made at the bottom of the container then water will flow out of it

The speed of ejected water can be calculated by help of Bernuolli's equation and Equation of continuity.

By Bernoulli's equation we can write

$Po + \frac{1}{2}\rho v_1^2 + \rho g h = Po + \frac{1}{2}\rho v_2^2 + \rho g *0$

Now by equation of continuity

$A_1v_1 = A_2v_2$

$\pi (0.2)^2 v_1 = \pi (0.01)^2 v_2$

from above equation we can say that speed at the top layer is almost negligible.

$v_1 = 0$

now again by equation of continuity

$\rho g h = \frac{1}{2} \rho v^2$

$v = \sqrt{2 g h}$

here we have

$h = h_1 - h_2$

$h = 0.50 - 0.03 = 0.47m$

now speed is given by

$v = \sqrt{2* 9.8 * 0.47}$

$v = 3.03 m/s$

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4 years ago

Assume this field is generated by a point charge of Q = 5 × 10-9 C. How far away is this charge located? Give your answer in met

marshall27 [118]

E=Eq,

where F is the electrostatic force (or Coulomb force) exerted on a positive test charge q.

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3 years ago

Acid rain is an example of which type of chemical weathering?

tino4ka555 [31]

The answer is Carbonic acid

6 0

3 years ago

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