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sergeinik [125]
3 years ago
11

I need answers for both questions

Physics
2 answers:
svlad2 [7]3 years ago
3 0
1: b. the apple absorbs red and reflects all other colors
2: d. all colors are absorbed
Anit [1.1K]3 years ago
3 0
Number 1 is b and number 2 is d stay safe
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A certain alarm clock ticks four times each second, with each tick representing half a period. The balance wheel consists of a t
Semenov [28]

Answer:

a. I=2.77x10^{-8} kg*m^2

b. K=4.37 x10^{-6} N*m

Explanation:

The inertia can be find using

a.

I = m*r^2

m = 0.95 g * \frac{1 kg}{1000g}=9.5x10^{-4} kg

r=0.54 cm * \frac{1m}{100cm} =5.4x10^{-3}m

I = 9.5x10^{-4}kg*(5.4x10^{-3}m)^2

I=2.77x10^{-8} kg*m^2

now to find the torsion constant can use knowing the period of the balance

b.

T=0.5 s

T=2\pi *\sqrt{\frac{I}{K}}

Solve to K'

K = \frac{4\pi^2* I}{T^2}=\frac{4\pi^2*2.7702 kg*m^2}{(0.5s)^2}

K=4.37 x10^{-6} N*m

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Answer:

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What would happen if a proton were added to the nucleus of the atom? (Check all that apply)
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-- It would add 1 to the atomic mass.

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The sum of all forces acting on an object<br><br>Balance force<br><br>friction<br><br>net force
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Net force if those the answer question
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