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Ahat [919]
3 years ago
7

What is most likely the author’s motive for writing this article? to get you to buy sports products to get you to support nuclea

r power plants to get you to raise money for space programs to get you to appreciate the benefits of atomic research
answer it right not just for the points if you belive in god
Physics
2 answers:
harina [27]3 years ago
4 0

To get you to aooreciate the benefits of atomic reaserch

i know this cause i just had the question and i got it right

nadezda [96]3 years ago
3 0

to get you to appreciate the benefits of atomic research

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Biologists use optical tweezers to manipulate micron-sized objects using a beam of light. In this technique, a laser beam is foc
vekshin1

Answer:

Explanation:

Part A) Using

light intensity I= P/A

A= Area= π (Radius)^2= π((0.67*10^-6m)/(2))^2= 1.12*10^-13 m^2

Radius= Diameter/2

P= power= 10*10^-3=0.01 W

light intensity I= 0.01/(1.12*10^-13)= 9*10^10 W/m^2

Part B)  Using

I=c*ε*E^2/2

rearrange to solve for E= \sqrt{((I*2)/(c*ε))

c is the speed of light which is 3*10^8 m/s^2

ε=permittivity of free space or dielectric constant= 8.85* 10^-12 F⋅m−1

I= the already solved light intensity= 8.85*10^10 W/m^2

amplitude of the electric field E= \sqrt{(9*10^10 W/m^2)*(2) / (3*10^8 m/s^2)*(8.85* 10^-12 F⋅m−1)

---> E= \sqrt{(1.8*10^11) / (2.66*10^-3) = \sqrt{(6.8*10^13) = 8.25*10^6 V/m    

 

8 0
3 years ago
Help me plz.<br>Show workings​
ddd [48]
Change in momentum: finial momentum - initial momentum
Momentum = mass * velocity
Mass = 100g, same as 0.1kg
m(v-u) = 0.1(10-2) = 0.1(8)
The answer is 0.8Ns
3 0
3 years ago
Read 2 more answers
When are you most aware of your motion in a moving vehicle: when it is moving steadily in a straight line or when it is accelera
jenyasd209 [6]

Answer:

A) Accelerating. You would not be aware of the motion if you did not look outside the car

Explanation:

Since human cannot sense the motion (unless visually), but the inertia force caused due to the acceleration of the motion. So if you are in a car with constant velocity, there's no acceleration and no inertia force, you would not be able to sense the motion at all unless you look outside.

3 0
3 years ago
How many estimates are used in the calculation of depreciation?
xeze [42]

Answer:

Two estimates

Explanation:

There are mainly two estimates used in the calculation of depreciation such as the useful life and the salvage value of an asset. The salvage value is defined as the predicted amount that will be obtained by a company from an asset when it is disposed at the end of the useful life of the particular asset. On the other hand, the useful life commonly refers to the estimation of how long the asset is useful for the company. This is different from the lifespan of the asset.  

3 0
3 years ago
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What is the most accurate and precise method to measure the thickness of a coin? ​
choli [55]

Answer:

The most accurate and precise method to measure the thickness of a coin would be by a micrometer screw guage.

6 0
3 years ago
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