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trasher [3.6K]
4 years ago
15

What is the force required to lift the balloon with

Physics
1 answer:
Olin [163]4 years ago
3 0

No force is required to lift that balloon. In fact, force is required to hold it down, and if you let go, it's up, up, and away.

Since the balloon's density is less than the density of the air around it, it's lighter than the air it displaces, there is a net upward buoyant force acting on it, and it floats up !

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boyakko [2]

Solids have molecules that move slowly and are close together and are very attracted to eachother.

Liquids have molecules that move freely and are slightly attracted to eachother.

Gases have molecules that move, but aren't attracted to eachother.

8 0
3 years ago
I NEED HELP ASAP!!!
eduard

Answer:

3. A

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Explanation:

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4 years ago
A long iron bar lies along the x-axis and has current of I = 16.4 A running through it in the +x-direction. The bar is in the pr
Gre4nikov [31]

Answer:

B = 8.0487mT

Explanation:

To solve the exercise it is necessary to take into account the considerations of the Magnetic Force described by Faraday,

The magnetic force is given by the formula

F =BILsin\theta

Where,

B = Magnetic Field

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L = Length

\theta = Angle between the magnetic field and the velocity, for this case are perpendicular, then is 90 degrees

According to our data we have that

I = 16.4A

F = 0.132N/m

As we know our equation must be modificated to Force per length unit, that is

\frac{F}{L} = BI sin(90)

Replacing the values we have that

0.132 = 16.4 (1) B

Solving for B,

B = \frac{0.132}{16.4}

B = 8.0487mT

8 0
4 years ago
How long is a football field?
Nana76 [90]

Answer:

91.44 meters or 300 feet

7 0
3 years ago
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What is potential difference​
lisabon 2012 [21]

Answer:

VOLTAGE

Explanation:

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3 years ago
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