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3 years ago

Which of the following regions of the electromagnetic spectrum has the highest energy

Physics

1 answer:

garri49 [273]3 years ago

6 0

Answer:

B. Radiowaves

Explanation:

Radiowaves are on the higher end of the spectrum, then infrared, visible light, and UV light (which is the lowest energy)

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Consider two soap bubbles with radius r1 and r2 (r1 <r2) connected via a valve. What happens if we open the valve

Sedaia [141]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The pressure difference of the first bubble is $\Delta P _1 =10 J/m^3$

The pressure difference of the second bubble is $\Delta P _2 =20 J/m^3$

The pressure difference on the second bubble is higher than that of the first bubble so when the valve is opened pressure from second bubble will cause air to flow toward the first bubble making is bigger

Explanation:

From the question we are told that

The radius of the first bubble is $r_1 = 10 \ mm=0.01 \ m$

The radius of the second bubble is $r_2 = 5 \ mm = 0.005 \ m$

The surface tension of the soap solution is $s = 25 \ mJ/m^2 = 25*10^{-3} J/m^2$

Generally according to the Laplace's Law for a spherical membrane the pressure difference is mathematically represented as

$\Delta P = \frac{4 s}{R}$

Now the pressure difference for the first bubble is mathematically evaluated as

$\Delta P _1 = \frac{4 s}{r_1}$

substituting values

$\Delta P _1 = \frac{4 *25 *10^{-3}}{0.01}$

$\Delta P _1 =10 J/m^3$

Now the pressure difference for the second bubble is mathematically evaluated as

$\Delta P _2 = \frac{4 s}{r_1}$

$\Delta P _2 = \frac{4 *25 *10^{-3}}{0.005}$

$\Delta P _2 =20 J/m^3$

3 0

3 years ago

Which of these equations will you used to find the final velocity if the initial

Svetach [21]

Answer:

2.77 would be the answer for this

5 0

3 years ago

The heating curve of an ice-water mixture that is slowly heated to 125??C contains three sloped and two level portions. What do

BigorU [14]

I believe the answer is D. phase changes. The two level portions represents change of state that does not involve change in temperature (at a constant temperature). The first level represents a change of solid to liquid;p where the ice melts and becomes water by gaining the latent heat of fusion, while the other level represents a change of state from liquid to gas; the water changes to steam (water vapor) by gaining the latent heat of vaporization.

8 0

4 years ago

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Three hunters x,y and z aim at a bird on top of a tree.Their individual probabilities of killing the bird are 3/5,2/3 and 5/6 re

TiliK225 [7]

Answer:

1 3/5*2/3=6/15

2 (3/5*2/3)+(2/3*5/6)+(3/5*5/6)=Ans

3 same as 2 i think

4 3/5+2/3+5/6=ans

5 (1-3/5)*(1-2/3)*(1-5/6)

Explanation

1 means x and y... for such a we multiply the probabilities

2 means x and y or x and z or y and z9 multiply ands add ors

3 i think it is same as 2

4 for this you have to negate the probabilities of killing to find that of not killing. Since it will be x and y and z, you multiply the final probabilities

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3 years ago

What Fitnessgram test is testing your CARDIORESPIRATORY ENDURANCE?

ziro4ka [17]

Answer:

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Explanation:

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3 years ago

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