HELP please it is due tomorrow and I don’t understand it..

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Answer 1

Answer:

Answer: The helium inside the tank is a lot more compressed than the helium in the balloon.

Explanation:

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which of the following laboratory tool would be most appropiate for measuring the approximate volume of a liquid?

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Beaker would be most appropriate for measuring the approximate volume of a liquid.

If there is a resistance off 45 ohms and a current of 120amps , what is the voltage ?

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Hello!

The answer is: The voltage is 5400 Volts.

Why?

We can calculate the voltage using the Ohm's Law.

The Ohm'ws Law states that:

$V=I*R$

Where,

V, is the voltage in volts

I, is the current in amps

R, is the resistance in ohms

We are given:

$R=45ohms\nI=120Amps$

Now, calculating the voltage, we have:

$V=I*R=45ohms*120Amps=5400Volts$

Hence, the voltage is 5400 Volts.

We can also calculate the power using the following formula:

$P=V*I$

Where,

P, is the power in watts

V, is the voltage in volts

I, is the current in amps

So,

$P=5400Volts*120Amps=648000W$

Have a nice day!

The amount of water vapor in the air is known as the _______.a.temperature b.condensation c.humidity d.precipitation

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it is C the humidity

The amount of water vapor in the air is known as the _______.

c. Humidity

Which is true about carbon-12 compared with carbon-13

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e mass number of any given atom depends solely on the number of protons and neutrons in its nucleus. The mass number of any atom can be determined by adding the number of protons and neutrons. (Mathematically this is stated as Mass Number = Protons + Neutrons). For instance, a Carbon atom with 6 protons and 6 neutrons will have a mass number of 12AMU. However, a Carbon atom with 6 protons and 8 Neutrons will have a mass number of 14AMU. They are both Carbon atoms, however they each have a different mass number. Atoms of the same element that have different numbers of neutrons, and therefore, different mass numbers, are called isotopes. Isotopic symbols are used to indicate isotopes of the same elements. In the following isotopic symbols the lower number is the atomic number…it is the number of protons. The upper number is the mass number, it represents to sum of the protons and neutrons in the atoms nucleus.

Newton's laws of motion

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1) The purse falls to the ground because of Newton’s first law, an object in motion stays in motion and an object at rest will stay at rest until an unbalanced force changes it. The first law includes inertia, which occurs when the object wants to continue to go forwards even when it’s been stopped. When Jane stops her car, the purse wants to keep going forward, therefore falling to the ground.

2) when you’re standing on the board, the board pushes up on you, while you/gravity is pushing downwards // when you jump down, the opposite force pushes upwards, allowing you to go up (jump)

3) Newton’s second law, A=F/M

5) 19.5 newtons

Can you use a heat pump to provide the temperature difference to run a heat engine?Yes, a heat engine runs on heat.
Yes, a heat pump moves heat.
No, heat is not created.
No, the heat supplied does not create a large enough temperature difference.

Answers

No,we cannot use heat pump to provide the temperature difference to run a heat engine.

Explanation:

In a heat pump energy is transferred from the heat source to the heat sink whereas in the heat engine energy is transferred from a higher temperature level to a lower temperature level called sink.In a heat engine the heat energy is converted into mechanical energy

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