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belka [17]
3 years ago
7

Cobalt-60 has a half life of 5.25 years. If you started with a 40 gram sample of pure cobalt-60, how many grams of cobalt-60 wou

ld remain after 10.5 years?
Physics
1 answer:
s2008m [1.1K]3 years ago
6 0

Answer:

10 grams

Explanation:

A = A₀ (½)^(t / T)

A = 40 (½)^(10.5 / 5.25)

A = 40 (½)^2

A = 40 · ¼

A = 10

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Light traveling in water (n = 1.33) into an unknown medium.If rhe angles if incidence and refraction are 40 degrees and 25 degre
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Soloha48 [4]

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3 0
2 years ago
The velocities of light in air and glass are 3.0 x 10^8ms and 2.0×10^8ms respectively. If the angle of refraction is 30°, the si
JulijaS [17]

Answer:

0.75

Explanation:

refractive \: index \:  =  \frac{3.0 \times  {10}^{2} }{2.0 \times  {10}^{2} }

= 1.5

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3 years ago
.Golden Rice is an example of genetically modified organism. <br> true or false
MissTica

Answer:

True

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7 0
3 years ago
Read 2 more answers
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