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Vikentia [17]
3 years ago
8

What does the half life for a radioactive material mean?

Physics
1 answer:
marissa [1.9K]3 years ago
6 0
Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive
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What were the two different alleles for height in the pea plants that Mendel studied?
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8 0
3 years ago
When three identical bulbs of 60W,200V rating are connected in series at a 200V supply the power drawn by them will be?
Law Incorporation [45]

Answer:

P = 180 [w]

Explanation:

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V = I*R & P = V*I

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Now we can calculate the current

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Attached is an image where we see the three bulbs connected in series, in the circuit we see that the current is the same for all the elements connected to the circuit.

And the power is defined by P = V*I

we know that the voltage is equal to 200[V], therefore

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8 0
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