4 years ago

An atom with (two, four, eight, or six valence electrons) is the most stable?

Physics

1 answer:

Zina [86]4 years ago

3 0

Answer:

Explanation:

the atom doesn't want to give away any electrons

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What is Resistance? How is it measured?

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Resistance is a measure of the opposition to current flow in an electrical circuit.

Explanation:

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3 years ago

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shtirl [24]

add the numbers from the three sliders to determine that mass of an object

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3 years ago

The water behind Grand Coulee Dam is 1000 m wide and 200 m deep. Find the hydrostatic force on the back of the dam. (Hint: the t

Vika [28.1K]

Answer:

The hydro static force on the back of the dam is $1.96\times10^{11}\ N$

Explanation:

Given that,

Width b= 1000 m

Depth d= 200 m

We need to calculate the average pressure

Using formula of average pressure

$P_{avg}=\rho\times g\times d_{avg}$

Put the value into the formula

$P_{avg}=1000\times9.8\times100$

$P_{avg}=980000\ Pa$

We need to calculate the hydro static force on the back of the dam

Using formula of force

$F = P_{avg}\times A$

Put the value into the formula

$F = 980000\times1000\times200$

$F=1.96\times10^{11}\ N$

Hence, The hydro static force on the back of the dam is $1.96\times10^{11}\ N$

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3 years ago

What is the work Sarah,60kg does against gravity is she goes up a 4m high stairwell in 3 seconds?

ladessa [460]

Work can be obtained from the following expression

W = F*d

Where F is the force (In this case the force it takes to lift Sarah, which is mass*gravity)

And d is the distance traveled.

W = 60kg*9.8m/s^2 * 4m = 2352 Joules

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3 years ago

A high efficiency shower can save... 1. water 2. energy 3. both ?

pantera1 [17]

Answer:

both

Explanation:

You'll use less water....less hot water so water and energy are saved

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3 years ago