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Ratling [72]
2 years ago
10

HOW TO DO THIS QUESTION PLEASE ​

Physics
1 answer:
allsm [11]2 years ago
7 0
For figure one the “+” are protons and the “-“ are electrons for the second one the middle is the nucleus and the other is the orbit
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When the temperature of 2.35 m^3 of a liquid is increased by 48.5 degrees Celsius, it expands by 0.0920 m^3. What is its coeffic
alexandr1967 [171]

Coefficient of volume expansion is 8.1 ×10⁻⁴ C⁻¹.

<u>Explanation:</u>

The volume expansion of a liquid is given by ΔV,

ΔV = α V₀ ΔT

ΔT = change in temperature  = 48.5° C

α =  coefficient of volume expansion =?

V₀ = initial volume = 2.35 m³

We need to find α , by plugin the given values in the equation and by rearranging the equation as,

\alpha=\frac{\Delta \mathrm{V}}{\mathrm{V}_{0} \Delta \mathrm{T}}=\frac{0.0920}{2.35 \times 48.5}=0.00081

  = 8.1 ×10⁻⁴ C⁻¹.

5 0
3 years ago
A very long stick ruled with meter markings is placed in empty space. A spaceship of rest length L = 100 m runs lengthwise along
alexira [117]

Answer:

Meter marks are on cut-off portion of stick is 100 - 60 = 40 m

Explanation:

Given data:

Spaceship  length of L = 100 m

Relative velocity between the ship and stick is given as

v = \frac{4}{5} c

The observed length observed by the outside observer is

L' = L\sqrt{1 -\frac{v^2}{c^2}}

putting all value to get observe length

putv = \frac{4}{5} c

L ' = 100\times \sqrt{1 - \frac{(4/5)^2c^2}{c^2}

L' = 60 m

Meter marks are on cut-off portion of stick is 100 - 60 = 40 m

8 0
2 years ago
Pleaseee help me!!!!!!!!!!!!
cluponka [151]
B because those are all symptoms
6 0
3 years ago
If you could fit 2.5 equal potatoes across the pan in one direction and 5 of the same potatoes in the other direction,how big ar
Ulleksa [173]
The length of the potatoes is  (0.4) x (the length of the pan).

The width of the potatoes is  (0.2) x (the width of the pan).
5 0
3 years ago
A runner changing speed from 3 meters per second to 5 meters per second is an example of
Sidana [21]

Answer: acceleration

Explanation:

he is accelarting from 3 meters per second to 5 meters per second

4 0
2 years ago
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