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Fed [463]
3 years ago
9

What is the half life of the cobalt-57 isotope

Physics
2 answers:
VikaD [51]3 years ago
5 0
The half-life of the ^{57}Co =271.74(6) days.
AlexFokin [52]3 years ago
3 0

Answer:

10 days

Explanation:

hope it help

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A 2.00-kg block is pushed against a spring with negligible mass and force constant k = 400 N/m, compressing it 0.220 m. When the
marin [14]

Answer:

0.82052 m

Explanation:

potential energy of spring = kinetic energy

=> 0.5kx^2 = 0.5mv^2

=> v=\sqrt{\frac{kx^2}{m} }

v=\sqrt{\frac{400\times 0.220^2}{2} }

v= 3.11127 m/s

angle = 37°

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Also,

m×g×h = 0.5×m×v^2

=> 2×9.8×D×0.60182 = 0.5×2×3.11127×3.11127

=> D = 0.82052 m

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3 years ago
Draw Aufbua diagram of sodium ion​
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Answer:

Aufbau diagram of sodium ion:

2s²,2p⁶,3s¹

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3 years ago
What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high? The potential energy is J
iris [78.8K]

The formula for potential energy would be PE = mgh Where: m is the mass; g is the acceleration due to gravity, and h would be height. So plugging in the data: PE = 150kg × 9.8 m/s^2 × 10m = 14700 Joules would be the potential energy for this problem. <span>
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4 years ago
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___________ is used mainly in submarines that remain underwater
marusya05 [52]

Answer: Your correct main answer is a submarine

Explanation:

Submarines are usually used for underwater warfare, and naval submarines are equipped with torpedoes, missiles, and high-powered nuclear weapons. The use of these along with their advanced tracking system helps to target ships and boats from below as well as other enemies. They can also work on targets that are on land.

Pls mark me brainiest

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