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3 years ago

10

What would NOT be a realistic exercising heart rate?

2 answers:

saul85 [17]3 years ago

4 0

Answer:C

Explanation:

Arte-miy333 [17]3 years ago

3 0

Answer:

C. 250 bpm

Explanation:

If your heart was beating at 250bpm, it would be beating about 4.2 times per second. The normal BPM for a heart can range anywhere from 40-100, so anything over or under should be very concerning. 250 is too large of a number for your heart to beat that fast.

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deepta and abhinav having weight 450N and 350N are playing seesaw. If deepta sits at a distance of 2cm from fulcrum, how far sho

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Answer:

Abhinav be seated at "2.57 cm" far. The further explanation is given below.

Explanation:

The given values are:

Deepta's weight,

= 450 N

Abhinav's weight,

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Deepta's distance from fulcrum,

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i.e.,

= 0.02 m

Let Abhinav's distance be "x".

As we know,

⇒ $Work \ done \ by \ Deepta = Work \ done \ by \ Abhinav$

⇒ $Deepta's \ weight\times Deepta's \ distance = Abhinav's \\ weight\times Abhinav's \ distance$

⇒ $450\times 0.02=350\times x$

⇒ $9=350\times x$

⇒ $\frac{9}{350} = x$

⇒ $x=0.025 \ m$

i.e.,

⇒ $2.57 \ cm$

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