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Brut [27]
3 years ago
15

Explain whether smoke filling up a room is diffusion or not

Physics
1 answer:
pogonyaev3 years ago
7 0
Yes, it is diffusion !

Diffusion is the process in which gas, through random movement of particles, tends to fill up the whole volume of the container in which it is placed. So a similar process would lead the smoke, which is in form of gas (or light particles), to fill in the whole room in which it is contained.
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What is the power of 10 when 0.00503 is written in scientific notation?
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Answer:

Negative 3

Explanation:

Bc scientific notation is the zeros either ahead or behind the actual numbers

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A light ray strikes a flat, smooth, reflecting surface at an angle of 80° to the normal. What angle does
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How to calculate F2?<br> m=16.4kg<br> f1= 2.7n<br> angle=34.4
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3 years ago
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A spring with a spring constant of 50 N/m is stretched 15cm. What is the force and energy associated with this stretching?
Olenka [21]
Data:
F (force) = ? (Newton)
k (<span>Constant spring force) = 50 N/m
x (</span>Spring deformation) = 15 cm → 0.15 m

Formula:
F = k*x

Solving: 
F = k*x
F = 50*0.15
\boxed{\boxed{F = 7.5\:N}}\end{array}}\qquad\quad\checkmark

Data:
E (energy) = ? (joule)
k (Constant spring force) = 50 N/m
x (Spring deformation) = 15 cm → 0.15 m

Formula:
E = \frac{k*x^2}{2}

Solving:(Energy associated with this stretching)
E = \frac{k*x^2}{2}
E =  \frac{50*0.15^2}{2}
E =  \frac{50*0.0225}{2}
E =  \frac{1.125}{2}
\boxed{\boxed{E = 0.5625\:J}}\end{array}}\qquad\quad\checkmark

7 0
3 years ago
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