3 years ago

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 $2.28\times 10^5\ C/m^3$ .

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2 years ago

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riadik2000 [5.3K]

8000 J is the answer

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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.

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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:

Explanation:

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

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

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a is the acceleration

From the question we have

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

We have the final answer as

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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.
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Copernicus model was simpler and some of his claims were correct.<span />

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