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Mazyrski [523]
3 years ago
15

How to calculate the velocity? the answer is 5.4 m/s I need the explication

Physics
1 answer:
Vanyuwa [196]3 years ago
7 0

Answer: sq. root of .735

Explanation:

multiply two on both sides.

(2) *2,94 = (0,200 * v^2) (2)

588 = 0400 * 2v^2

divide by 400 on both sides

1.47 = 2v^2

divide by 2 on both sides

.735 = v^2

take square root of both sides

\sqrt{.735)  or .85732141

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Bond [772]

Answer:

4276.98 years

Explanation:

t = age of the sample in numbers of years

T = half life of the carbon-14 isotope = 5730 yrs

λ = decay constant of carbon-14

decay constant is given as

\lambda =\frac{0.693}{T}

\lambda =\frac{0.693}{5730}

\lambda = 0.000121

A₀ = activity of Carbon-14 in living plants

A  = activity of Carbon-14 after time "t" = (0.596) A₀

Using the equation

A = A_{o} e^{-\lambda t}

(0.596) A₀  = A_{o} e^{-0.000121 t}

0.596 = e^{-0.000121 t}

t = 4276.98 years

4 0
3 years ago
What is the force of the drag for a 65 kg bicyclist, initially at rest at the top of a hill coasts down the hill, reaching a spe
Fofino [41]
Who knows, not me, not me and not me again
4 0
2 years ago
If you do 1500 J of work hoisting a 20 kg bale of hay , to what height did you lift it
strojnjashka [21]

Explanation:

W = PE

W = mgh

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4 0
3 years ago
Moby lifted Tim off the ground a distance of 2 meters using a force of 2N. How much work did Moby do?
DaniilM [7]

Answer:

4 J

Explanation:

As I guess,

From the equation,

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Explanation:

6 0
4 years ago
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