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sveticcg [70]
2 years ago
11

Mấy bạn việt nam giúp mình với. cần gấp quá

Physics
1 answer:
Basile [38]2 years ago
6 0
Saying english so we can help u
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A common flashlight bulb is rated at 0.23 a and 2.9 v (the values of the current and voltage under operating conditions). if the
allochka39001 [22]
The resistance at operating temperature is R = V/I = 2.9 V / 0.23A = 12.61 ohmsT from R – R0 = Roalpha (T – T0), we find that:T = T0 + 1/alpha (R/R0 -1) = 20 degrees Celsius + (1/ 4.3 x 10^-3/K) (12.61 ohms/ 1.1 ohms – 1)T = 2453.40 degrees Celsius
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A moving object has a kinetic energy of 150J. what is the mass of the object if its momentum is 25kgm/s
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3 years ago
Which type of wave results from a moderately sloping coastal region?
Naddik [55]

Hey there!

Your answer: Spilling breaker

Spilling breaker usually occurs when a beach or ocean is flat, and as the waves of the wind continues to happen, slowly the region would eventually become a slope.

It's almost like play-dough. Let's say that we set a perfect flat surface of play-dough on the table. As we continue slide our hands one direction, doesn't the play dough have more on one side than the other? It eventually contains a slope if you add enough from the first place.

Your answer: Spilling breaker

8 0
3 years ago
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What are the uses of nuclear power ? ​
Alona [7]

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the main reason is electricity

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5 0
3 years ago
Which type of sedimentary rock is formed from rock and mineral fragments weathered from rocks at earth’s surface?
Zanzabum

Answer:

The correct answer is detritic rocks.

Explanation:

Sedimentary rocks are rocks formed by the accumulation of sediments, particles of various sizes that are transported by water, ice or wind, which are subjected to physical and chemical processes, resulting in consolidated materials.

Sedimentary rocks formed from the accumulation of mineral deposits and rocks from erosion and deposited by gravity are called detritic rocks.

Have a nice day!

6 0
3 years ago
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