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3 years ago

A passenger in the rear seat of a car moving at a steady speed is at rest relative to

Physics

1 answer:

Ber [7]3 years ago

6 0

The person is at rest with respect to the car. So the best answer is:

c. the front seat of the car.

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"Two electrons in an atom are separated by 1.4 × 10−10 m, the typical size of an atom. What is the force between them? The Coulo

Rudiy27

Answer:

$F\approx 1.17551\times 10^{-8} N$

Explanation:

In order to find the force between the two electrons, we need to use Coulomb's law. In its scalar form, the law is given by:

$F=k_c \frac{q_1*q_2}{r^2}$

Where:

$k_c=Coulomb\hspace{3}constant\approx 9\times10^{9} \frac{Nm^2}{C^2} \\q_1\hspace{3}and\hspace{3}q_2=Magnitudes\hspace{3}of\hspace{3}the\hspace{3}charges\\r=Distance\hspace{3}between\hspace{3}the\hspace{3}charges$

The electric charge of an electron is a known constant given by:

$q_e \approx -1.6 \times 10^{-19} C$

So:

$q_1=q_2=q_e \approx -1.6 \times 10^{-19} C$

Therefore, replacing the data provided in the Coulomb's law equation:

$F=(9\times 10^{9})\frac{(-1.6\times 10^{-19})*(-1.6\times 10^{-19})}{(1.4\times 10^{-10})^2} =1.175510204\times10^{-8} \approx 1.17551\times10^{-8}N$

8 0

3 years ago

Briefly describe the layers of the earth.

Strike441 [17]

<span>Crust: The thin, outer layer of the earth. Less than 1% of the Earth's mass.Made of solid rock, broken into plates.

Mantle: Molten rock on which plates float. Contains 67% of the earth's mass.
<span>
Core: Inner layer of the Earth. Made of both solid and liquid metals.</span></span>

7 0

3 years ago

Is shooting a a basketball force

lyudmila [28]

Answer:

yes

Explanation:

because when you shot the ball your applying force to it

3 0

4 years ago

Three pairs of wooden dowel rods are mounted on a wooden platform. Small plastic cylinders are attached to their ends; the cylin

katovenus [111]

The natural frequency of this dowel rod is determined as 0.5 Hz.

<h3>What is frequency?</h3>

The frequency of an object is the number of complete revolutions per second.

F = n/t

where;

n is number of compete revolution
t is time

F = 1/2

F = 0.5 Hz

Thus, the natural frequency of this dowel rod is determined as 0.5 Hz.

Learn more about frequency here: brainly.com/question/301048
#SPJ1

8 0

2 years ago

Condensation is the process of ____________________.

maksim [4K]

D. I hope my answer helps you!

5 0

3 years ago