2 years ago

List at least 10 derived units of some physical quantities.

Physics

2 answers:

Artist 52 [7]2 years ago

8 0

Answer:

pressure, stress pascal N/m2

energy, work, quantity of heat joule N·m

power, radiant flux watt J/s

electric charge, quantity of electricity coulomb -

valentina_108 [34]2 years ago

8 0

Hello there mate ☺️,

Given in the attached image is a table including all the derived units with some symbols.

✍️ By Benjemin ☺️

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g To decrease the intensity of the sound you are hearing from your speaker system by a factor of 36, you can

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Answer:

Increase the distance by a factor of 6.

Explanation:

The intensity at a distance r is given by :

$I=\dfrac{P}{4\pi r^2}$

Here,

P is power emitted

r is distance from source

It means that the intensity is inversely proportional to the distance from the source.

To decrease the intensity of the sound you are hearing from your speaker system by a factor of 36, we can increase the distance by a factor of 6. Hence, this is the required solution.

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3 years ago

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A Hooke's law spring is compressed 12.0 cm from equilibrium, and the potential energy stored is 72.0 J. What compression (as mea

Anuta_ua [19.1K]

Answer:14.14 cm

Explanation:

Given

Spring Compression $x=12 cm$

Potential energy Stored in spring $=72 J$

Suppose k is the spring constant of spring

Potential Energy of spring is given by $=\frac{kx^2}{2}$

$\frac{k(0.12)^2}{2}=72$

$k(0.12)^2=144$

$k=10,000 N/m$

$k=10 kN/m$

for 100 J energy

$\frac{k(x_0)^2}{2}=100$

$10\times 10^3\cdot (x_0)^2=200$

$(x_0)^2=2\times 10^{-2}$

$x_0=0.1414$

$x_0=14.14 cm$

6 0

2 years ago

List at least 10 derived units of some physical quantities.​

List at least 10 derived units of some physical quantities.