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valkas [14]
3 years ago
11

A student adds two vectors of magnitudes 48 m and 22 m. What are the maximum and minimum possible values for the resultant of th

ese two vectors.
Physics
1 answer:
Julli [10]3 years ago
4 0

Answer:

<em>Maximum=70 m</em>

<em>Minimum=26 m</em>

Explanation:

<u>Vector Addition </u>

Since vectors have magnitude and direction, adding them takes into consideration not only the magnitudes but also their respective directions. Two vectors can be totally collaborative, i.e., point to the same direction, or be totally opposite. In the first case, the magnitude of the sum is at maximum. Otherwise, it's at a minimum.

Thus, the maximum magnitude of the sum is 48+22 = 70 m and the minimum magnitude of the sum is 48-22= 26 m

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Each rarefraction on a longitudinal wave correspond to what point on a transverse wave?
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Answer: In a longitudinal wave, the crest and trough of a transverse wave correspond respectively to the compression, and the rarefaction. A compression is when the particles in the medium through which the wave is traveling are closer together than in its natural state, that is, when their density is greatest.
4 0
3 years ago
Why does magnet 5 float above magnet 4
4vir4ik [10]
Because the same sides(N and N, or S and S) are facing each other in magnet 4 and 5. Also in magnet 2 and 3.
8 0
3 years ago
1. What is the difference between thermal energy and heat? Give an example.
Arisa [49]

Answer:

when you run u get tied

Explanation:

I do not now this one

5 0
3 years ago
If a vibrating string is made shorter (i.e., by holding your finger on it), what effect does this have on the frequency of vibra
Temka [501]
The correct answer is "3. Both increase"

In fact, the frequency of a vibrating string is given by
f= \frac{1}{2L}  \sqrt{ \frac{T}{\mu} }
where L is the length of hte string, T the tension and \mu the linear mass density. 
We can see that string is made shorter, L decreases, so the frequency f increases. And since the pitch has the same behaviour of the frequency, it increases as well.
4 0
3 years ago
The Goodyear blimp Spirit of Akron is 62.6m long and contains 7023m^3 of helium. When the temperature of the helium is 285 K, it
andre [41]

Answer:

1328.7032 kg

Explanation:

P = Pressure = 112 kPa

T = Temperature = 285 K

V = Volume = 7023 m³

R = Gas constant = 8.314 J/mol K

From the ideal gas law we have

PV=nRT\\\Rightarrow n=\dfrac{PV}{RT}\\\Rightarrow n=\dfrac{112000\times 7023}{8.314\times 285}\\\Rightarrow n=331960.04203\ moles

The mass of gas is given by

m=n\times MW_{He}\\\Rightarrow m=331960.04203\times 4.0026\times 10^{-3}\\\Rightarrow m=1328.70326\ kg

The mass of helium in the blimp is 1328.7032 kg

8 0
3 years ago
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