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fredd [130]
3 years ago
7

A nuclear reactor is:

Physics
2 answers:
Nadusha1986 [10]3 years ago
7 0
Is a change in the identity of an atomic nucleus that when it's bombarded with an energetic particular
Natali5045456 [20]3 years ago
3 0
A device used to initiate and control a sustained nuclear chain reaction. 
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A plant box falls from the windowsill 25.0 m above the sidewalk and hits the cement 3.0 s later. What is the box's velocity when
mamaluj [8]

Answer:

22m/s

Explanation:

To find the velocity we employ the equation of free fall: v²=u²+2gh

where u is initial velocity, g is acceleration due to gravity h is the height, v is the velocity the moment it hits the ground, taking the direction towards gravity as positive.

Substituting for the values in the question we get:

v²=2×9.8m/s²×25m

v²=490m²/s²

v=22.14m/s which can be approximated to 22m/s

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What would happen to mass and accelaration if the force on an object increases?? please help.
kozerog [31]
Wouldn't mass stay the same and acceleration increase or am I mistaken?

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joja [24]
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I hoped this was satisfying!:)</span>
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3 years ago
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you see a lightning bolt in the sky. You hear a clap of thunder 3 seconds latter. The speed of 330 m/s. How far away was the lig
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suppose a vacuum cleaner use 120 j of electrical energy. If 45 j are used to pull air into the vacuum cleaner, how efficient is
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