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3 years ago

The earth's hydrosphere includes which of the following?

Physics

2 answers:

Andre45 [30]3 years ago

6 0

I had this question too lol the answer is D. aka All Of Them!

Oduvanchick [21]3 years ago

5 0

The answer is all of these

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Two polarizers A and B are aligned so that their transmission axes are vertical and horizontal, respectively. A third polarizer

Reptile [31]

Answer:

Explanation:

Let the angle between the first polariser and the second polariser axis is θ.

By using of law of Malus

(a)

Let the intensity of light coming out from the first polariser is I'

$I' = I_{0}Cos^{2}\theta$ .... (1)

Now the angle between the transmission axis of the second and the third polariser is 90 - θ. Let the intensity of light coming out from the third polariser is I''.

By the law of Malus

$I'' = I'Cos^{2}\left ( 90-\theta \right )$

So,

$I'' = I_{0}Cos^{2}\theta Cos^{2}\left ( 90-\theta \right )$

$I'' = I_{0}Cos^{2}\theta Sin^{2}\theta$

$I'' = \frac{I_{0}}{4}Sin^{2}2\theta$

(b)

Now differentiate with respect to θ.

$I'' = \frac{I_{0}}{4}\times 2 \times 2 \times Sin2\theta \times Cos 2\theta$

$I'' = \frac{I_{0}}{2}\times Sin 4\theta$

7 0

3 years ago

A car travels 92 miles in 2 hours. What is the car's AVERAGE SPEED?

nekit [7.7K]

Answer:

about 46 mph

Explanation:

6 0

3 years ago

Pls help me with this fast. I will mark brainiest

denis23 [38]

Answer:

a) 70, 95

b) 95-70= 25cc

c) density= mass/volume

102/25

=4.08g/cc

5 0

3 years ago

At the 1 s mark, which objects have equal momentum?

Rudik [331]

C. The bowling ball and the bicycle

p = mv
P of bike = 12x5 = 60
P of rock = 2x20 = 40
P of ball = 5 x 10 = 60

3 0

3 years ago

PLEASE HURRY!!!!<br>why does the temperature change?

svet-max [94.6K]

Wind, radiation, and the sun are all factors that change the temperature.

Solar heating of the Earth's surface is uneven because land heats faster than water, and this causes air to warm, expand and rise over land while it cools and sinks over the cooler water surfaces.

6 0

3 years ago