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adoni [48]
3 years ago
7

Overcoming an object inertia always requires an

Physics
1 answer:
Zinaida [17]3 years ago
3 0
Opposite force in the opposite.
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Mary cycled at an average speed of 8 km/h. How far has she traveled if she rides for 4 hours?
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Which sentence from the passage shows that the function of the river depicted here has carried through to modern times?

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Which sentence from the passage shows that the function of the river depicted here has carried through to modern times?

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Find the time t2 that it would take the charge of the capacitor to reach 99.99% of its maximum value given that r=12.0ω and c=50
defon

Answer:

Explanation:

Given that, .

R = 12 ohms

C = 500μf.

Time t =? When the charge reaches 99.99% of maximum

The charge on a RC circuit is given as

A discharging circuit

Q = Qo•exp(-t/RC)

Where RC is the time constant

τ = RC = 12 × 500 ×10^-6

τ = 0.006 sec

The maximum charge is Qo,

Therefore Q = 99.99% of Qo

Then, Q = 99.99/100 × Qo

Q = 0.9999Qo

So, substituting this into the equation above

Q = Qo•exp(-t/RC)

0.9999Qo = Qo•exp(-t / 0.006)

Divide both side by Qo

0.9999 = exp(-t / 0.006)

Take In of both sodes

In(0.9999) = In(exp(-t / 0.006))

-1 × 10^-4 = -t / 0.006

t = -1 × 10^-4 × - 0.006

t = 6 × 10^-7 second

So it will take 6 × 10^-7 a for charge to reached 99.99% of it's maximum charge

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Mechanical waves can travel through _______.
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mediums only, mechanical waves always propagate through medium

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Which of the Materials are insulators? (select all that apply)
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I believe all the insulators would be glass, wood, plastic, and yarn.

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