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Airida [17]
3 years ago
8

When does radioactivity decay occur?

Physics
1 answer:
Yuri [45]3 years ago
6 0
In an unstable atomic nuclei 
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If approximately equal volumes of an acid and a bace of a equal strength are combined the resulting solutin should have a pH of
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2. An athlete of average size is hanging from the end of a 20 m long rope, which has a mass of 4 kg and is attached to a hook in
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  t = 0.319 s

Explanation:

With the sudden movement of the athlete a pulse is formed that takes time to move along the rope, the speed of the rope is given by

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Linear density is

           λ = m / L

           λ = 4/20

           λ = 0.2 kg / m

The tension in the rope is equal to the athlete's weight, suppose it has a mass of m = 80 kg

           T = W = mg

           T = 80 9.8

           T = 784 N

The pulse rate is

          v = √(784 / 0.2)

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The time it takes to reach the hook can be searched with kinematics

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What happens when a light bulb is disconnected in a parralel circuit? ​
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