4 years ago

Do you think it would be possible to get your maximum heart rate ? Why or why not

1 answer:

8 0

Answer:

Speaking hypothitically, since I dont have a lot of knowledge around this subject, but yes i think it's possible, and probably not as rare as one might think.

Explanation:

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A worker’s success in contributions to the common good is?

Zinaida [17]

Answer:

measured by how well she or he does the job

Hope this helps! （づ￣3￣）づ╭❤～

6 0

4 years ago

The Chernobyl reactor accident in what is now Ukraine was the worst nuclear disaster of all time. Fission products from the reac

Anna35 [415]

Answer:

The correct answer is "53.15 days".

Explanation:

Given that:

Half life of $131_{I}$ ,

$T_{\frac{1}{2} }= 8 \ days$

Let the initial activity be " $R_o$ ".
and, activity to time t be "R".

To find t when R will be "1%" of $R_o$ , then

⇒ $R=\frac{1}{100}R_o$

As we know,

⇒ $R=R_o e^{-\lambda t}$

or,

∴ $e^{\lambda t}=\frac{R_o}{R}$

By putting the values, we get

$=\frac{R_o}{\frac{R}{100} }$

$=100$

We know that,

Decay constant, $\lambda = \frac{ln2}{T_{\frac{1}{2} }}$

hence,

⇒ $\lambda t=ln100$

$t=\frac{ln100}{\lambda}$

$=\frac{ln100}{\frac{ln2}{8} }$

$=53.15 \ days$

5 0

3 years ago

9. A child standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down, the child co

marin [14]

I think the answer is C

3 0

4 years ago

Y’all know what to do… please help

Alisiya [41]

Answer:

A. It increased gradually as the reaction progressed.

3 0

3 years ago

Read 2 more answers

If an object with a mass of 30 kg accelerates at a rate of 2 m/s^2, what is the

Zolol [24]

Hello, for this use the second law of Newton:

F = ma

We have the data:

F = ?

m = 30 kg

a = 2 m/s^2

Replacing:

F = 30 kg * 2 m/s^2

F = 60 N

Result:

The force is of 60 Newtons.

8 0

3 years ago