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AVprozaik [17]
3 years ago
13

How are a star's luminosity, mass, and radius related?

Physics
2 answers:
Tatiana [17]3 years ago
8 0

Answer:

The Luminosity of a star depends on BOTH its temperature and its radius (surface area): L is proportional to R2 T4. A hotter star is more luminous than a cooler one of the same radius. A bigger star is more luminous than a smaller one of the same temperature.

Explanation:

hope it helps

help me out by going to my page and answering some questions

9966 [12]3 years ago
7 0

Answer:

The Luminosity of a star depends on BOTH its temperature and its radius (surface area): L is proportional to R2 T4. A hotter star is more luminous than a cooler one of the same radius. A bigger star is more luminous than a smaller one of the same temperature.

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A volumetric flask made of Pyrex is calibrated at 20.0°C. It is filled to the 150-mL mark with 34.5°C acetone. After the flask i
8_murik_8 [283]

Answer:149.73 ml

Explanation:

Given

\beta \ of\ acetone=1.50\times 10^{-4} ^{\circ}C^{-1}

change in volume is given by

\Delta V=V_{final}-V_{initial}

\Delta V=\nu_{initial}\beta _{acetone}\left [ T_f-T_i\right ]

V_{final}=\nu_{initial}+\nu_{initial}\beta _{acetone}\left [ T_f-T_i\right ]

V_{final}=150+150\times 1.50\times 10^{-4}\left [ 20-32\right ]

V_{final}=149.73 ml

3 0
4 years ago
A certain ocean wave has a frequency of 0.07 hertz and a wavelength of 10 meters. what is the wave's speed? a 0.07 m/s
Elis [28]
V=f*wavelength
v=0.07hz*10m
v=0.7 m/s
8 0
3 years ago
What are generated at transform fault plate boundaries?
tankabanditka [31]

Answer: The Earth's layer, which has the covering and layer, is made of a progression of things, or structural plates, that creep after some time. Along these lines, at intersecting limits, mainland outside is made and maritime covering is devastated. 2 plates slippy past each other structures a redesign plate limit.

5 0
3 years ago
Energy stores in food would be considered what
Oksana_A [137]

Answer:

Chemical Energy

A Brief Overview Of Chemical Energy

Chemical energy is simply energy that is stored in compounds or elements, specifically in the atomic bonds that connect atoms and molecules. In food, it's a form of potential energy because it's stored away.

Explanation:

8 0
2 years ago
Read 2 more answers
A barge floating in fresh water (rho = 1000 kg/m^3) is shaped like a hollow rectangular prism with base area A = 550 m^2 and hei
patriot [66]

Answer:

Explanation:

A )

When empty , H₀ length of barge is inside water .

volume of barge inside water = A x H₀

Weight of displaced water = AH₀ x ρ x g

Buoyant force = weight of displaced water = AH₀ ρg

B)

It should balance the weight of barge

Weight = buoyant force

Weight = AH₀ ρg

mass of barge = weight / g

weight / g = AH₀ ρ

= 550 x .55 x 1000

= 302500 kg

6 0
3 years ago
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