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Juli2301 [7.4K]
3 years ago
14

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Physics
1 answer:
Doss [256]3 years ago
3 0
Lasers are important to help mankind in many different reasons. Some of these reasons include laser hair removal, some kinds of eye surgery, and lasers are said to help with the military in the near future. Laser hair removal is usually used for getting rid of unwanted hairs. And is just a easy alternative to regular waxing or doing it yourself. Some types of eye surgery require lasers to complete them successfully. This is usually very very precise as lasers get the job done at pin point accuracy. Besides medical uses the U.S. military have been testing laser weapons on battleships to attack or defend oncoming missiles. This will most likely replace small firing cannons or flares.

I hope this helped you.

Brainliest is always appreciated if you feel its deserved! 
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Light rays from an object after passing through a convex lens form an image at the focal point behind the lens (opposite side of
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Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.


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Mercury is in the 80th position in the periodic table. How many protons does it have?
ipn [44]

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What are gears and what is a lever ?​
blagie [28]

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3 years ago
Two boxes on opposite ends of a massless board that is 3.0 m long. The board is supported in the middle by a fulcrum. The box on
rosijanka [135]

Answer:

b. 1.1 m

Explanation:

It is given that the total distance between the masses is equal to the length of the board, which is 3 m. Therefore,

s_{1} + s_{2} = 3\ m\\\\s_{2} = 3\ m - s_{1}\ --------- eqn(1)

where,

s₁ = distance of fulcrum from left mass

s₂ = distance of fulcrum from right mass

In order to achieve balance, the torque due to both masses must be equal:

T_{1} = T_{2}\\m_{1}s_{1} = m_{2}s_{2}\\(25\ kg)(s_{1}) = (15\ kg)(s_{2})\\\\\frac{15\ kg}{25\ kg}(s_{2}) = s_{1}\\\\using\ eqn(1):\\(0.6)(3\ m - s_{1}) = s_{1}\\1.8\ m = 1.6\ s_{1}\\s_{1} = \frac{1.8\ m}{1.6}

s₁ = 1.1 m

Hence, the correct option is:

<u>b. 1.1 m</u>

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joja [24]

Answer:

amplitude

Explanation:

6 0
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