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Dimas [21]
3 years ago
8

Lasers can be used in in place of a knife.

Physics
1 answer:
Anna11 [10]3 years ago
4 0

Answer: No

Explanation:

Laser can cut many things,

its cutting is so popular largely because of its versatility.  Laser cutterscan cut a wide variety of materials – anything from paper, wood, cork, acrylic and foam to different types of metals. Still, there are some materials that would  seemingly fit well into this list but should never be cut using a laser cutter.

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If the window is 11 m above the ground, find the time the stone is in flight.
rjkz [21]
d=vi*t+(1/2)gt²

d=11 m
g=9.8 m/s²
vi=0 m/s

11 m=0 m/s*t+(1/2)9.8 m/s²t²
11 m=4.9 m/s²t²
t²=11 m / 4.9 m/s²
t=√(11 m / 4.9 m/s²)=1.489... s≈1.5 s

Answer: the time the sone is in flight is 1.5 s
5 0
3 years ago
A 53.3 kg woman slides down a 35.0° hill with an acceleration of 4.10 m/s. What is the friction force acting on the woman?
lorasvet [3.4K]

Answer:

I attached an image that should help.

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2 years ago
A 2kg Book is sitting on a table.a 10n Force is pulling to the right.a 3n Force is pulling to the left what is the net force act
salantis [7]


The net force = sum of all forces acting on the body



If we take left side as -ve and right side as +ve,
then,

The net force here would be equal to,
10N + (- 3N)
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Therefore, a net force of +7N ( + indicates it's moving towards right) is acting on the book of mass 2kg.


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3 years ago
The weight of the atmosphere above 1 m- of
mars1129 [50]

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1.09 kg.m

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no need

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2 years ago
Which best describes what occurs when an object takes in a wave as the wave hits it?
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