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kipiarov [429]
3 years ago
10

Turning on and listening your favorite TV show is an example of

Physics
1 answer:
tensa zangetsu [6.8K]3 years ago
4 0

Answer:

Electrical Energy and Sound Energy

Explanation:

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a motorcycle is capable of accelerating at 5.1 m/s starting from rest how far can it travell in 1.5 sec
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<span>Δx=<span>(0)</span><span>(3.0s)</span>+<span>12</span><span>(4.7<span>m<span>s2</span></span>)</span><span><span>(3.0s)</span>2</span>=<span>21<span>m</span></span></span>

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3 years ago
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Read 2 more answers
If this decay has half-life of 2 years, how many years would it take for 10.8 g Protactinium-231 to remain given an initial mass
sergij07 [2.7K]

Answer:

Time = 6 years

Explanation:

First, we will calculate the no. of half life periods required to reduce the mass of Protactinium to the given value:

m' = \frac{m}{2^{n} } \\\\2^n = \frac{m}{m'}

where,

n = no. of half-life periods = ?

m = initial mass = 86.3 g

m' = remaining mass = 10.8 g

Therefore,

2^n = \frac{86.3\ g}{10.8\ g}\\\\2^n = 8\\2^n = 2^3

Since the bases are the same. Therefore equating powers:

n = 3

Now we calculate the time:

Time = (n)(Half-Life)\\Time =(3)(2\ years)

<u>Time = 6 years</u>

3 0
3 years ago
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