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3 years ago

5

What is electricity? Why does it happen?

2 answers:

Lady bird [3.3K]3 years ago

8 0

Answer:

<h3>Electricity is the flow of charges through a conductor. </h3>

<em>It happens when a force moves the first electron on a surface where they are free to </em><em>move</em><em>.</em><em> </em>

<em>From</em><em>~</em><em>C</em><em>h</em><em>a</em><em>r</em><em>m</em><em>i</em><em>n</em><em>g</em><em>l</em><em>e</em><em>x</em><em>~</em>

<em> </em>

Natali [406]3 years ago

3 0

Answer:

Explanation:

La electricidad es el flujo de cargas a través de un conductor.

Ocurre cuando una fuerza mueve el primer electrón en una superficie donde puede moverse libremente .

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If an airplane traveled 1800 km in 2 hours<br> what is its average speed

Vesnalui [34]

Answer:

900km h

Explanation:

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2 years ago

What is always true of a liquid's shape and volume?

Natalija [7]

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4 0

3 years ago

Just this last one!!

Pepsi [2]

Answer:

$47 \ \frac{m}{s}$

Explanation:

s = displacement (m)

u = initial velocity $(\frac{m}{s})$

v = final velocity $(\frac{m}{s})$

a = acceleration $(\frac{m}{s^{2} })$

t = time (s)

s = 235

a = -4.7

v = 0

v² = u² + 2as

(0)² = u² + 2(-4.7)(235)

u² - 2209 = 0

u² = 2209

u = 47

4 0

2 years ago

Read 2 more answers

In the lab, you submerge 100 g of 40°C nails in 200 g of 20°C water. (The specific heat of iron is 0.12 cal/g # °C.) Equate the

Deffense [45]

Answer:

Final temperature of the mixture becomes

$T = 21.13^oC$

Explanation:

Here we know that heat given by the nail is equal to the heat absorbed by water

So here we know that heat to change the temperature is given as

$Q = ms\Delta T$

so by equating the heat we have

$m_{iron}s_{iron}\Delta T = m_{water}s_{water}\Delta T$

now we have

$100 (0.12) (40 - T) = 200 (1) (T - 20)$

$4.8 - 0.12 T = 2T - 40$

$44.8 = 2.12 T$

$T = 21.13^oC$

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2 years ago

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8_murik_8 [283]

The answer will be b but check it by yourself we are humans

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2 years ago