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3 years ago

Electricity is the _ of electrons, because electrons _ from atom to atom.

Physics

2 answers:

Oksana_A [137]3 years ago

7 0

Electricity is the FLOW of electrons, because electrons PASS from atom to atom

aalyn [17]3 years ago

7 0

Electricity is the $\sf{\underline{flow}}$ of electrons, because electrons $\sf{\underline{passes}}$ from atom to atom.

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The mass of a planet is 3.7 x 1024 kg. If the planet has a radius of 9.2 x 106 m what is the acceleration of gravity for a perso

nalin [4]

Explanation:

It s given that,

Mass of a planet, $M=3.7\times 10^{24}\ kg$

Radius of a planet, $R=9.2\times 10^{6}\ m$

(1) We need to find the acceleration due to gravity for a person on the surface of the planet. Its formula is given by :

$g=\dfrac{GM}{R^2}$

$g=\dfrac{6.67\times 10^{-11}\ Nm^2/kg^2\times 3.7\times 10^{24}\ kg}{(9.2\times 10^{6}\ m)^2}$

$g=2.91\ m/s^2$

(2) The escape velocity is given by :

$v=\sqrt{\dfrac{2GM}{R}}$

$v=\sqrt{{\dfrac{2\times 6.67\times 10^{-11}\ Nm^2/kg^2\times 3.7\times 10^{24}\ kg}{9.2\times 10^{6}\ m}}$

v = 7324.61 m/s

Hence, this is the required solution.

3 0

3 years ago

a car traveling at a velocity of 2 m/s undergoes an acceleration of 4.5 m/s^2 over a distance of 340 m. How fast will it be goin

ra1l [238]

Vi = 2m/s
a= 4.5 m/s
d= 340 m
vf= ?

use this equation ... vf^2=vi<span>^2+2ad

you should get vf = 55.3
hope this helps </span>

3 0

3 years ago

A mass of 30.0 grams hangs at rest from the lower end of a long vertical spring. You add different amounts of additional mass ΔM

ra1l [238]

Answer:

K = 373.13 N/m

Explanation:

The force of the spring is equals to:

Fe - m*g = 0 => Fe = m*g

Using Hook's law:

K*X = m*g Solving for K:

K = m/X * g

In this equation, m/X is the inverse of the given slope. So, using this value we can calculate the spring's constant:

K = 10 / 0.0268 = 373.13N/m

3 0

4 years ago

Read 2 more answers

The table below shows some common animals and their hearing range in Hertz (Hz). Animal Hearing Range in Rate of Vibrations per

kap26 [50]

Answer:

Explanation:

If you list and compare, the elephants hearing range is the closest to a humans.

Humans: 20-20,000

Elephant: 16-12,000

While the others are either too much more or less than a humans.

Bat: 2,000-110,000

Dolphin: 90-105,000

Chicken: 125-2,000

5 0

3 years ago

Two<br>vectors Å and °B are such that A = 2<br>and A-B-C find the angle between them

sweet-ann [11.9K]

Answer:

hjg567 A 567

Explanation:

7 0

3 years ago

Electricity is the _____________ of electrons, because electrons _____________ from atom to atom.

Electricity is the _ of electrons, because electrons _ from atom to atom.