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AfilCa [17]
2 years ago
5

A student has an 80 g sample of a radioactive material that has a half-life of 20 seconds. How much material will he have left a

fter 60 seconds?
A.
10 g

B.
20 g

C.
40 g

D.
5 g
Physics
1 answer:
Juliette [100K]2 years ago
7 0
The answer is C 40 g
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a spring with a constant of 80N/m is stretched by a force of 240N. how much the displacement of the spring from equilibrium?
Inessa05 [86]

Answer:

1200N/m

Explanation:

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to a spring a force applied is given as :

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2 years ago
The__ of friction is a number that represents the resistance to sliding
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Explanation:

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3 years ago
A 30.0 kg dolphin decelerates from 12.0 to 7.00 m/s in 2.60 s to join another dolphin in play. What average force (in N) was exe
Crazy boy [7]

Answer:

Force is 57.69 N to the opposite direction of motion of dolphin.

Explanation:

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That is    

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7 0
2 years ago
A jeweler working with a heated 47 g gold ring must lower the ring's temperature to make it safe to handle. If the ring is initi
Gelneren [198K]

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This heat will be given by the water

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6 0
3 years ago
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