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fenix001 [56]
3 years ago
7

Which of the following is a scalar quantity?

Physics
2 answers:
Rus_ich [418]3 years ago
8 0

Answer:

i think no. A is the coeerct answer

hope this will help you

neonofarm [45]3 years ago
4 0

Answer:

55

Explanation:

I hope this answer help u

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A transformer is used to light a lamp rated 40w, 240v from a 400v A.C supply. Calculate:
zubka84 [21]

Answer:1.81

(a) Explanation:the turn ratio= input voltage÷output voltage.

400÷220=1.81.

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5 0
3 years ago
A source charge of 5.0 µC generates an electric field of 3.93 × 105 at the location of a test charge. How far is the test charge
kap26 [50]

Answer:

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6 0
4 years ago
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What Are the Advantages of SI unit<br><br>​
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Answer:

1)SI is coherent system of units

2) SI is rational system of units

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The person does not sink into the snow because the force acts on a larger area so that the pressure is less
The edge of the sharp knife has a smaller area so the force acting on the knife produces a larger pressure
6 0
3 years ago
The variation in the pressure of helium gas, measured from its equilibrium value, is given by ΔP = 2.9 × 10−5 cos (6.20x − 3 000
nadya68 [22]

Answer:

The wavelength of this wave is 1.01 meters.

Explanation:

The variation in the pressure of helium gas, measured from its equilibrium value, is given by :

\Delta P=2.9\times 10^{-5}\ cos(6.2x-3000t)..............(1)

The general equation is given by :

\Delat P=P_o\ cos(kx-\omega t)...........(2)

On comparing equation (1) and (2) :

k=6.2

Since, k=\dfrac{2\pi}{\lambda}

\dfrac{2\pi}{\lambda}=6.2

\lambda=1.01\ m

So, the wavelength of this wave is 1.01 meters. Hence, this is the required solution.

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3 years ago
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