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KIM [24]
3 years ago
10

A nova occurs when

Physics
1 answer:
eimsori [14]3 years ago
5 0

C. hydrogen accreted onto a white dwarf from a close companion rapidly fuses to helium, releasing a large amount of energy.

The accreted material, composed mainly of hydrogen, is compacted on the surface of the white dwarf due to the intense gravitational force on that place. As material accumulates, The white dwarf becomes increasingly hot, until it reaches the critical temperature for ignition of nuclear fusion.

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Alex777 [14]
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3 0
3 years ago
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A carriage of 20 kg is pulled with a force of 35 N. How far the carriage will go
Gennadij [26K]

Answer:

2.71 m

Explanation:

Force is the product of mass and acceleration

F=m*a

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Work done=F*d

In this case;

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6 0
3 years ago
A projectile is fired with initial speed vo at an angle of 45o above the horizontal. Assume no air resistance.
katrin2010 [14]

Answer:

The correct answer is a

Explanation:

At projectile launch speeds are

X axis     vₓ = v₀ = cte

Y axis     v_{y} = v_{oy} –gt

The moment is defined as

         p = mv

For the x axis

         pₓ = mvₓ = m v₀ₓ

As the speed is constant the moment is constant

For the y axis

        p_{y} = m v_{y} = m (v_{oy} –gt) = m v_{oy} - m (gt)

Speed ​​changes over time, so the moment also changes over time

Let's examine the answer

i   True

ii False.  The moment changes with time

The correct answer is a

7 0
3 years ago
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umka2103 [35]
They should look for <span>a report from an independent scientific research firm,
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plus a lot of other relevant medical research on the subject.</span>
8 0
2 years ago
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When an x-ray photon passes through matter it undergoes a process called:_________.
bekas [8.4K]

Answer:

when an x-ray passes trough matter, it undergoes a process called attenuation

5 0
2 years ago
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