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ikadub [295]
3 years ago
14

Choose the law that BEST explains the example:

Physics
2 answers:
Nimfa-mama [501]3 years ago
5 0

Answer:

1st and 3rd law

Explanation:

Newton's second law of motion states that  the acceleration of a body is directly proportional to the force acting on the object and inversely proportional to the objects mass.

the more air (force) in a balloon the more the motion of the balloon. this relates to the Newton's first law

Newton's third law states that for every action there is an equal and opposite reaction:

the action of blowing up the balloon creates an equal and opposite reaction of the balloon flying away with an amount of speed proportional the force of the air blown into it

Elenna [48]3 years ago
4 0

Answer:

Third law

Explanation:

cause it has to do with the reaction of the balloon

Hope this right!

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What is the kinetic energy of a ball with a mass of 0.06kg moving at 50m/s?
Sunny_sXe [5.5K]
KE= .5*M*V^2 
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4 0
3 years ago
A person standing 1.20 m from a portable speaker hears its sound at an intensity of 5.50 ✕ 10−3 W/m2. HINT (a) Find the correspo
iris [78.8K]

Answer:

PART A)

L = 97.4 dB

PART B)

I = 6.11 \times 10^{-6} W/m^2

PART C)

L = 67.9 dB

Explanation:

PART A)

level of sound is given as

L = 10 Log\frac{I}{I_o}

now we have

L = 10 Log\frac{5.50\times 10^{-3}}{10^{-12}}

L = 97.4 dB

PART B)

Since source is a spherical source

so here the intensity of sound is inversely depends on the square of the distance from the source

\frac{I_2}{I_1} = \frac{r_1^2}{r_2^2}

\frac{I_2}{5.50 \times 10^-3} = \frac{1.20^2}{36^2}

I_2 = 6.11 \times 10^{-6} W/m^2

PART C)

level of sound is given as

L = 10 Log\frac{I}{I_o}

now we have

L = 10 Log\frac{6.11\times 10^{-6}}{10^{-12}}

L = 67.9 dB

3 0
3 years ago
The container was lifted a height of 14 m
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Hope this helps!
8 0
2 years ago
Which change is the best example of a physical change?
murzikaleks [220]
The answer would be a nail rusting, but really it could be any of these.
3 0
4 years ago
the velocity of sound on a particular day outside is 331 meter/sound. what is the frequency of a tone if it has a wavelength 0.6
nataly862011 [7]
The frequency (f) in hertz (1/s) of the sound waves is the quotient when its speed (S) is divided by the wavelength (n). This is mathematically expressed, 
 
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Thus, the frequency of the wave is 551.67 Hz.               

6 0
4 years ago
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