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dsp73
3 years ago
13

If a book has a mass of 3 kg, what is the book's weight in N?

Physics
1 answer:
sesenic [268]3 years ago
5 0

Answer:

29.4 N

Explanation:

F = ma

F = (3 kg) (9.8 m/s²)

F = 29.4 N

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<span>a scale of temperature with absolute zero as zero, and the triple point of water as exactly 273.16 degrees.</span>
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A centrifuge rotates so that 0. 25 m from the center is traveling at 343 m/s (the speed of sound). How many RPM is this? What is
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Answer:

[13,101 RPM]

[1372 rad/s]

Explanation:

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2 years ago
Two identical cylinders, A and B, contain the same type of gas at the same pressure. Cylinder A has twice as much gas as cylinde
cricket20 [7]

Answer:

D. TA < TB

Explanation:

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PV  = nRT

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<u>FOR CYLINDER A</u>:

PV/R = (nA)(TA)  _____ eqn (1)

<u>FOR CYLINDER B</u>:

PV/R = (nB)(TB)  _____ eqn (2)

Because, Pressure, Volume are constant for both cylinders.

Comparing eqn (1) and (2)

(nA)(TA) = (nB)(TB)

It is given that the amount of gas in cylinder A is twice as much as the gas in cylinder B. This means the number moles in cylinder A are twice as much as no. of moles in cylinder B.

nA = 2(nB)

using this in eqn:

2(nB)(TA) = (nB)(TB)

TA = (1/2)(TB)

<u>TA = 0.5 TB</u>

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<u>D. TA<TB</u>

8 0
3 years ago
Why do we need to have an understanding about impulse and momentum ?
bonufazy [111]
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The uniform 12 ft pole is hinged to the truck bed and released from the vertical position as the truck starts from rest with an
Anna35 [415]

Answer:

w = 0.886 rad / s

Explanation:

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the angular velocity we can find it

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3 years ago
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