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wlad13 [49]
3 years ago
6

During physical activity of high intensity, your heart will beat at a percentage of its maximum rate. Whi

Physics
1 answer:
Maurinko [17]3 years ago
8 0

Answer:

D

Explanation:

If it is of very high intensity it will be 85-100%

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A wooden block meauring 40cm x 10cm x 5cm has a mass 850gm . find the density of wood?
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Explanation:

Density = Mass / Volume = 850 / 40*10*5 = 0.425 g /cm^3

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Which statement best defines an electric field?
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A region around a charged particle or object within which a force would be exerted on other charged particles or objects
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A team of engineers is working together to design a new airplane. The team members each live in different cities. For which purp
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The internet is most useful to them because they use it to communicate.

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A technician at a semiconductor facility is using an oscilloscope to measure the AC voltage across a resistor in a circuit. The
d1i1m1o1n [39]

Answer:

The value to be reported is 5.48V

Explanation:

The RMS (root mean square) is defined as the value of voltage that will produce the same heating effect, or power dissipation, in circuit, as this AC voltage.

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It is expressed as V_{rms} = \frac{V_{m} }{\sqrt{2} }

where Vm is the maximum or peak value of the voltage

In calculating the RMS of the voltage , we simply divide the peak voltage by square root of 2 (√2)

V_{rms} = \frac{7.75}{\sqrt{2} }

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= 5.48 V

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2 years ago
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