Calculate the buoyancy of the balloon as "grams lift," that is, the difference between the mass of an equal volume of dry air at the same temperature and pressure and the mass of the He in the balloon. Assume the molar mass of air is 28.8 g/mol.

Answers

Answer 1

Answer:

Explanation:

Since, the given balloon contains equal volume of dry air at the same temperature and pressure therefore, moles of air filled is equal to the moles of helium gas.

Moles of air is 228363.69 moles and molar mass of air is 28.8 g/mol.

As we know that,

No. of moles of air = $\frac{mass}{\text{molar mass}}$

228363.69 mol = $(mass)/(28.8 g/mol)$

mass = 6576874.341 g

Therefore, mass left is as follows.

6576874.341 g - 913454.77 g (as 913454.77 g = mass of He)

= 5664419.57 g

Thus, we can conclude that mass left is 5664419.57 g.

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At sea level, water ______________ at 100°C.

Answers

Answer:

boils

Explanation:

Vapour pressure of the liquid determines the temperature at which a liquid will boil. When water boils the pressure of the gas above it becomes equal to the vapour pressure of the liquid. This causes the inter-molecular bonds of water to break down and the water starts to evaporate. Water boils at 100°C at sea level however if you were to reach a higher altitude water would boil at a lower temperature as the air pressure will be lower.

At sea level water boils at 100 degrese celcius

A 10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2? F=
M=
A=

Answers

The force to accelerate down an alley way will be "30 N".

In the given question, the values are:

Mass,

m = 10 kg

Acceleration,

a = 3 m/s²

As we know the formula for finding the force will be:

→ $Force = Mass* Acceleration$

or,

→ $F = m* a$

By putting the given values in the formula, we get

→ $= 10* 3$

→ $= 30 \ N$

Thus the above answer is correct.

Learn more about mass here:

brainly.com/question/12195736

Hello!

A 10 kg bowling ball would require. What force to accelerate down an alleyway at a rate of 3 m/s² ?

We have the following data:

F (force) = ? (in N or kg.m/s²)

m (mass) = 10 kg

a (acceleration) = 3 m/s²

We apply the data to the Net force formula, we have:

$F =m*a$

$F = 10\:kg * 3\:(m)/(s^2)$

$F = 30\:kg*(m)/(s^2) \to \boxed{\boxed{F = 30\:N}}\:\:\:\:\:\:\bf\green{\checkmark}$

Answer:

The force is 30 Newton

______________________

$\bf\purple{I\:Hope\:this\:helps,\:greetings ...\:Dexteright02!}\:\:\ddot{\smile}$

The function of a capacitor in an electric circuit is to?A. measure the amount of current in the circuit.
B. increase circuit power
.C. allow current flow between its plates.
D. store electric charges.

Answers

Well let's see:

A). No. A capacitor doesn't measure anything.

B). No. The power delivered to the circuit is determined by
      the battery or power supply and all the things in
the circuit that dissipate energy. A capacitor doesn't
do any of these things.

C). No. If any current actually flows between its plates,
   the capacitor is shot and can't do its job, and
   must be replaced.

D). Yes. A capacitor stores charges on its plates, and
electrical energy in the field between its plates.

Answer:

D. Stores electric charges

Visible light is an example of?

Answers

Answer:

Visible light is an example of electromagnetic waves.

Explanation:

Visible light is an example of electromagnetic waves. The visible light are the range in which the light is visible to the human eye. The wavelength of visible light varies from 400 nm to 700 nm.

The visible region consists of following light namely,

1. Violet : 380–450 nm

2. Blue : 450–485 nm

3. Cyan : 485–500 nm

4. Green : 500–565 nm

5. Yellow : 565–590 nm

6. Orange : 590–625 nm

7. Red : 625–740 nm

Hence, the visible light is an example of electromagnetic wave.

electromagentic waves

Which is not true about neutron? (a) It is neutral particle (b) It is highly unstable in nature (c) It is present in the nucleus. (d) It contributes to the most of the atom

Answers

(b) It is highly unstable in nature. Neutrons are actually quite stable and are present in the nucleus.

Does anyone understand the Circuit Analysis paper. I'm completely lost. If anyone can help, PLEASE DO!!!

Answers

It's possible that I might have a good chance of understanding it,
and possibly even explaining it, if I could SEE it !

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