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Harman [31]
3 years ago
5

What does AC stand for in physics?

Physics
2 answers:
Oliga [24]3 years ago
6 0
Answer:

A. Alternating current
Svetradugi [14.3K]3 years ago
3 0

Answer:

Alternating current

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Which type of mirror produces images that are always upright and at the same distance from the mirror as the object is?
Alex73 [517]
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<span>provided that </span>
<span>the mirror and the object are oriented parallel to each other</span>
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4 years ago
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stepan [7]

Answer:

option 1 will be the answer.

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Identify the type of force described (contact or noncontact):
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1.contact force

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A slender rod is 80.0 cm long and has mass 0.390 kg . A small 0.0200-kg sphere is welded to one end of the rod, and a small 0.05
Keith_Richards [23]

Answer

given,

length of slender rod =80 cm = 0.8 m

mass of rod = 0.39 Kg

mass of small sphere = 0.0200 kg

mass of another sphere weld = 0.0500 Kg

calculating the moment of inertia of the system

I = \dfrac{ML^2}{12}+\dfrac{m_1L^2}{4}+\dfrac{mL^2}{4}

I = \dfrac{0.39\times 0.8^2}{12}+\dfrac{0.02\times 0.8^2}{4}+\dfrac{0.05\times 0.8^2}{4}

I =0.032\ kg.m^2

using conservation of energy

\dfrac{1}{2}I\omega^2 = (m_1-m_2)g\dfrac{L}{2}

\omega=\sqrt{\dfrac{(m_1-m_2)gL}{I}}

\omega=\sqrt{\dfrac{(0.05-0.02)\times 9.8 \times 0.8}{0.032}}

\omega=2.71 \rad/s

we know,

v = r ω

v = \dfrac{L}{2} \times 2.71

v = \dfrac{0.8}{2} \times 2.71

v = 1.084 m/s

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4 years ago
What kind of stars make up the galactic nucleus?
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I think the correct answer would be old and metal poor stars are found in the galactic nucleus. This nucleus us a region in the center of a galaxy which contains a higher luminosity than other parts. It produces very high amounts of energy. Hope this helps.
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