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Salsk061 [2.6K]
3 years ago
8

If you could observe atoms and molecules with the naked eye, what would you look for as conclusive evidence of a chemical reacti

on?
Physics
1 answer:
Blizzard [7]3 years ago
3 0
<span>If you could observe atoms and molecules with the naked eye, an evidence of a chemical reaction would be a formation of a new substance where atoms and molecules bond with each other forming new compounds. Hope this helps. Have a nice day.</span>
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How to find velocity
Valentin [98]
V=d/t 

v=speed 
d=distance traveled
t=time taken

hope this helps 
8 0
3 years ago
It's possible for a determined group of people to pull an aircraft. Drag is negligible at low speeds, and the only force impedin
gogolik [260]

Answer:

F_o = 890.67 N

Explanation:

initial speed of the aircraft = 0

it covers a distance = 100 m

time taken by it = 53 s

so we will have

d = v_i t + \frac{1}{2}at^2

100 = 0 + \frac{1}{2}a(53^2)

a = 0.071 m/s^2

now we know that there are two forces on the aircraft

1) applied force in forward direction

2) friction force in opposite direction

so we will have

F - \mu mg = ma

F - (0.02)(200,000)(9.81) = 200,000(0.071)

F = 39,240 + 14,200

F = 53440 N

so net force by 60 officers is 53440 N

so force due to each officer is given as

F_o = \frac{53440}{60} = 890.67 N

3 0
3 years ago
What is the best definition of the property of texture?
sergejj [24]

Texture is the way an object feels. How a surface or substance feels

7 0
3 years ago
What is the electric potential energy of a charge that experiences a force of 3.6x10^-4 N when it is 9.8x10^-5 m from the source
jekas [21]

<u>Answer:</u>

3.5 x 10^-8 J

<u>Explanation:</u>

We are given,

force experienced by a charge = 3.6 x 10^-4 N; and

distance of charge from the source of electric field =  9.8 x 10^-5 m

We know that, <em>Energy = force x distance</em>

therefore, to find the potential energy of the charge, we need to multiply its applied force with the given distance to get:

Electric potential energy of a charge = (3.6 x 10^-4) × (9.8 x 10^-5) = 3.5 x 10^-8 J

Therefore, the potential energy of a charge is 3.5 x 10^-8 J.

6 0
4 years ago
Why do planets orbit the sun (why don't they crash into the sun)?
Jobisdone [24]
Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as we now understand Earth's gravity pulls down anything that isn't held up by some other force
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3 years ago
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