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3 years ago

Why do electrons rather than protons make up the flow of charge in a metal wire?

1 answer:

6 0

Protons are tightly bound to the nucleus of atoms, and the nucleus is
'shielded' from the outside world by the 'cloud' of electrons around it.
It takes a lot of energy to separate a proton from the nucleus. When
that happens, it's a 'radioactive' or a 'nuclear' event, and the atom has
changed into an atom of a different substance. This isn't something
that's happening around us very often.

On the other hand, the electrons are on the outside of the atom, and
it's rather easy to convince an electron to leave its atom and flow off
to somewhere else.

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A pilot flew a jet from City A to City B, a distance of 2400 mi. On the return trip, the average speed was 20% faster than the o

Allisa [31]

Answer:

Explanation:

Let the velocity be Va for outbound journey and 1.2 Va for return journey .

Total time taken = 2400 / Va + 2400 / 1.2 Va

2400 / Va + 2400 / 1.2 Va = 20 / 3 h

1 / Va ( 2400 + 2000 ) = 20 / 3

4400 / Va = 20/3

Va = 4400 x 3 / 20 = 660 mi / h

7 0

3 years ago

Scientists think that convection currents flow in earth’s

torisob [31]

Answer: convection currents does flow because God created the earth and God it makes life flow

Explanation:

God

7 0

3 years ago

Water flows through a first pipe of diameter 3 inches. If it is desired to use another pipe for the same flow rate such that the

Alborosie

Answer:

the diameter of the second pipe is 2.52 in

Explanation:

Given the data in the question;

We know that; the rate of flow is the same;

Av1 = Av2

v ∝ √h

$\frac{A1}{A2}$ = $\frac{V2}{V1}$

$\frac{A1}{A2}$ = √( $\frac{h2}{h1}$ )

( π/4.D1² / π/4.D2² ) = √( $\frac{h2}{h1}$ )

( D1² / D2² ) = √( $\frac{2h1}{h1}$ ) since second is double of first

( D1² / D2² ) = √( $\frac{2}{1}$ )

3² / D2² = √2

D2²√2 = 9

D2² = 9/√2

D2² = 9 / 1.4142

D2² = 6.364

D2 = √ 6.364

D2 = 2.52 in

Therefore, the diameter of the second pipe is 2.52 in

3 0

3 years ago

The electrical energy that moves through a surge protector is 1.8 kilowatt-hours. How many watts of power will the surge protect

11Alexandr11 [23.1K]

The surge protector doesn't use energy. The current that carries Energy may pass through it but a good surge protector won't consume any of that energy. It'll just pass through the surge protector. The current that carrys the energy passes through it to be used by devices further on down the line, such as a toaster or a welder. If those devices are using 1.8 kilowatts of power, then that means that 6,480,000 Joules of energy pass through the surge protector in one hour. They all come out the other end and keep going.

4 0

4 years ago

A man walks 30 m to the west, then 5 m to the east in 45 seconds. What is his average speed?

dsp73

The average speed is 0.55 m/s

<h3>What was his displacement?</h3>

Displacement is defined as the change in position of an object.

Mathematically,

D = Initial value - Final Value

D = 30 - 5 = 25m

Now , We have to find the average velocity,

Average velocity is calculated by the formula V = D/t,

where V equals the average velocity, D equals total displacement and t equals total time.

V = D/t

V = 25 m / 45s

V = 0.55 m/s

So , The average speed is o.55 m/s

learn more about average speed:brainly.com/question/9834403

#SPJ1

5 0

2 years ago