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Andrei [34K]
3 years ago
14

A 3 N force pushes on a object for 20 meters. Find the work done

Physics
1 answer:
astraxan [27]3 years ago
6 0
W = Fx

w = 3.20 = 60 N.m
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A point charge q1=+5.00nC is at the fixed position x=0, y=0, z=0. You find that you must do 8.10×10−6J of work to bring a second
Maru [420]

The value of the second charge is 1.2 nC.

<h3>Electric potential</h3>

The work done in moving the charge from infinity to the given position is calculated as follows;

W = Eq₂

E = W/q₂

<h3>Magnitude of second charge</h3>

The magnitude of the second charge is determined by applying Coulomb's law.

E = \frac{kq_2}{r^2} \\\\\frac{kq_2}{r^2} = \frac{W}{q_2} \\\\kq_2^2 = Wr^2\\\\q_2^2 = \frac{Wr^2}{k} \\\\q_2 = \sqrt{\frac{Wr^2}{k} } \\\\q_2 =  \sqrt{\frac{(8.1 \times 10^{-6}) \times (0.04)^2}{9\times 10^9} } \\\\q_2 = 1.2 \times 10^{-9} \ C\\\\q_2 = 1.2 \ nC

Thus, the  value of the second charge is 1.2 nC.

Learn more about electric potential here: brainly.com/question/14306881

7 0
2 years ago
Scientists have been able to estimate the age of our solar system by dating _____
Alisiya [41]

Answer: The correct answer is "radiometric dating".

Explanation:

Radiometric dating: It is a technique which is used to estimate the age of the rocks. In this technique, there is neither daughter product or parent nuclide can leave or enter the material after its formation.

Radioactive atoms are unstable. It decays into stable daughter atom.

Firstly, measure the quantity of the unstable atoms which are left in rock. Then, compare remaining the quantity of the unstable atoms with the quantity of stable daughter atoms in the rock to calculate the passed time since that rock formed.

Therefore, Scientists have been able to estimate the age of our solar system by radiometric dating.

5 0
3 years ago
Read 2 more answers
FOR EACH GROUP OF TERMS, WRITE A SENTENCE THAT SHOWSHOW THE TERMS ARE RELATED:
skad [1K]
1. A body is in motion when it changes its position at a certain time/duration.
2. Speed is related to how fast a body is moving.
3. Speed means that a body is moving and covering distance at a certain time.
4. Speed<span> is the distance traveled by an object where as, </span>velocity<span> is distance traveled by an object per unit time in a particular direction. </span>
5. Velocity is the rate of change of distance or direction of a body with respect to time.
5 0
4 years ago
The type of graph used to show how a part of something relates to the whole is which of the following?
Slav-nsk [51]

Answer:

Circle or pie graph is used to show how a part of something relates to the whole.

Explanation:

Pie graphs are easy to read and can present a very clear picture of the relationships.

4 0
3 years ago
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What are the three primary particles that make up an atom, and
Lyrx [107]

Answer:

Protons, Electrons, and Neutrons are the 3 primary particles in an atom.

Protons - (+1)

Electrons - (-1)

Neutrons - (0)

<h3>Your answer would be C</h3>
7 0
3 years ago
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