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svp [43]
3 years ago
10

Help me please I only have a few minutes to get this doneplease and thank q

Physics
1 answer:
DIA [1.3K]3 years ago
6 0
A: particles are more spread out in gas
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Suppose 2.10 C of positive charge is distributed evenly throughout a sphere of 1.30-cm radius. 1) What is the charge per unit vo
Anuta_ua [19.1K]

Answer:

\rho=2.28\times 10^5\ C/m^3

Explanation:

Given that,

Charge, Q = 2.1 C

The radius of sphere, r = 1.3 cm = 0.013 m

We need to find the charge per unit volume for this situation. It can be calculated a follows:

\rho=\dfrac{Q}{\dfrac{4}{3}\pi r^3}\\\\\rho=\dfrac{2.1}{\dfrac{4}{3}\pi \times (0.013)^3}\\\\\rho=2.28\times 10^5\ C/m^3

So, the charge per unit volume is 2.28\times 10^5\ C/m^3.

3 0
2 years ago
Plz help... asap I need it
riadik2000 [5.3K]
8000 J is the answer
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2 years ago
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Which type of mirror causes light rays to refract away from each other?
Vikentia [17]
Mirrors don't cause refraction.

A convex mirror could cause parallel rays to REFLECT away from each other.
8 0
3 years ago
An object accelerates 3.0 m/s2 when a force of 6.0 N is applied to it. What is the mass of the object?
makvit [3.9K]

Answer:

<h2>2 kg</h2>

Explanation:

The mass of the object can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

m =  \frac{6}{3}  \\

We have the final answer as

<h3>2 kg</h3>

Hope this helps you

5 0
2 years ago
Which of the following statements correctly describes the models put forth by Ptolemy and Copernicus to explain the universe? A.
FrozenT [24]
The correct option is D. 
The model developed by Ptolemy has a lot of inconsistency and during the middle age additional explanation was offered for the claims made by the model. The model was very complicated because it was based on erroneous assumptions.
Copernicus model was simpler and some of his claims were correct.<span />
8 0
3 years ago
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