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Lostsunrise [7]

3 years ago

10

While watching a movie a spaceship explodes and there is a loud bang and flash of light. What is wrong with this scene? Explain

how you know using evidence and scientific reasoning from the lesson.

1 answer:

Ksenya-84 [330]3 years ago

4 0

Well if the ship was in space their shouldn’t be a loud bang. Because you can’t hear anything in space

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What is the amount of electrical potential is measured by?<br> A. ampere<br> B. watt<br> C. volts

VLD [36.1K]

Answer:

voltmeter (C. Volts)

Explanation:

The amount of electrical potential is measured by voltmeter. Electrical potential is the amount of work needed to move a unit electric charge from a reference point to the specific point in an electric field. <u>The SI unit of electrical potential is Volt</u>.

brainliest?

3 0

3 years ago

The work function for silver is 4.73 eV. (a) Convert the value of the work function from electron volts to joules.

pogonyaev

Answer:

$W=7.56\times 10^{-19}\ J$

Explanation:

Given that,

The work function for silver is 4.73 eV.

We need to find the value of the work function from electron volts to joules.

We know that,

$1\ eV=1.6\times 10^{-19}\ J$

For 4.73 eV,

$4.73\ eV=1.6\times 10^{-19}\times 4.73\\\\=7.56\times 10^{-19}\ J$

So, the work function for silver is $7.56\times 10^{-19}\ J$ .

6 0

3 years ago

You wish to buy a motor that will be used to lift a 10-kg bundle of shingles from the ground to the roof of a house. The shingle

gogolik [260]

Answer:

$\tau=19.21\ N-m$

Explanation:

It is given that,

Mass of bundle of shingles, m = 10 kg

Upward acceleration of the shingles, $a=1.5\ m/s^2$

The radius of the motor of the pulley, r = 0.17 m

Let T is the tension acting on the shingles when it is lifted up. It can be calculated as :

$T-mg=ma$

$T=m(g+a)$

$T=10\times (9.8+1.5)$

T = 113 N

Let $\tau$ is the minimum torque that the motor must be able to provide. It is given by :

$\tau=r\times T$

$\tau=0.17\times 113$

$\tau=19.21\ N-m$

So, the minimum value of torque is 19.21 N-m. Hence, this is the required solution.

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3 years ago

How would the composition of an atom change if both the atomic number and mass number each increase by one?

Softa [21]

If both the atomic number and mass number each increased by one, then ...

-- the atom would have one more proton in its nucleus,

and

-- whenever it was in a neutral state, it would also have one more electron in its cloud.

<em>choice - B</em>

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4 years ago

How does vapor release energy into the atmosphere

Oduvanchick [21]

I would say a because i just had this

4 0

3 years ago

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