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spayn [35]
3 years ago
8

Carbon-14 has a half-life of 5,700 years. How long will it take for 6.25% of the Carbon-14 to be remaining?

Physics
1 answer:
IRISSAK [1]3 years ago
4 0

Answer:

22,800 years

Explanation:

Half life equation:

A = A₀ (½)^(t / T)

where A is the final amount,

A₀ is the initial amount,

t is time,

and T is the half life.

0.0625 = (½)^(t / 5700)

log 0.0625 = (t / 5700) log 0.5

4 = t / 5700

t = 22,800

It takes 22,800 years.

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Crank

Answer:

3.88m/s

Explanation:

Using the law of conservation of momentum

m1u1+m2u2 = (m1+m2)v

m1 and m2 are the masses

u1 and 2 are the initial velocities

v is the final velocity

Given

m1 = 64kg

u1 = 4.2m/s

m2 = 25kg

u2 = 3.2m/s

Required

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Substitute the given values into the formula

64(4.2)+25(3.2) = (65+25)v

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v = 348.8/90

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8 0
3 years ago
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hoa [83]

Answer:

D. Empty Space

Explanation:

4 0
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san4es73 [151]

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Thus Option A is the correct answer

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tightrope has both low mass  and low speed, thus its momentum will be low


4 0
3 years ago
Paul and Ivan are riding a tandem bike together. They’re moving at a speed of 5 meters/second. Paul and Ivan each have a mass of
Marysya12 [62]
Well they could go down a hill to gain more kinetic energy.
6 0
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The form of energy given off by the vibrating strings of the violin is? A. Electrical Energy B. Potential Energy C. Radiant Ener
S_A_V [24]

Answer:

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