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MakcuM [25]
3 years ago
8

Why are ceiling of concert hall and conference halls made curved?

Physics
1 answer:
Gnoma [55]3 years ago
4 0

The ceiling of a concert hall and conference halls are made curved so that the sound that emanates from the source will reflect to any point of the curve of these halls. Thereby, increasing the sound wave travelled across the hall.

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What magnet maintains its magnetic proaperties even in the absence of an external magnetic field? a) Ferromagnet b Paramagnet c)
insens350 [35]

Answer:

(a) Ferromagnet

Explanation:

Ferromagnetism is defined as the property by which certain magnets form the permanent magnets.

It is tone of the strong magnetism and it is common phenomenon of magnet in the everyday life of magnetism.

Permanent magnets are made up of ferromagnetic material, in this if the magnetic field is applied then this material is magnetized but do not losses its magnetic property after removal of external magnetic field.

5 0
3 years ago
pumili Ng dalawang teoryang napag aralan gumawa Ng Venn diagram na nag papakita Ng pag kakatulad at pagkaiba Ng mga ito​
MrRissso [65]

Answer:

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7 0
2 years ago
This is a measure of force per unit area.
Vlad1618 [11]
<h2>Answer: Pressure</h2>

<u>Pressure</u> is the force F exerted by a gas, a liquid or a solid on a surface (or area) A.

Its unit according to the International System of Units is Pascal Pa which is equal to N/m^{2} and its formula is:  

P=\frac{F}{A}  

5 0
3 years ago
The potential energy of a body if its mass is 30 kg and height 30 m and gravity 10m/sec2<br><br>​
Dafna1 [17]

Explanation:

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6 0
2 years ago
A muon is traveling at 0.988
AlexFokin [52]

As per Einstein's relation of relativity

m = \frac{m_0}{\sqrt{1 - \frac{v^2}{c^2}}}

here we know that

m_0 = 207 m_e = 207 \times 9.11 \times 10^{-31} kg

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now here we know that

v = 0.988 c

now from above equation mass of the muon is given as

m = \frac{1.88 \times 10^{-28}}{\sqrt{1 - 0.988^2}}

m = 1.22 \times 10^{-27} kg

now for the momentum of muon we can use

P = mv

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P = 3.62 \times 10^{-19} kg m/s

so above is the momentum of muon

6 0
3 years ago
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