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Elanso [62]
3 years ago
8

Which of the following changes will increase the frequency of an oscillating pendulum?

Physics
1 answer:
svlad2 [7]3 years ago
6 0

Answer:

c. an increase in the length of the rope.

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Billy drops a water balloon from the roof of his house. Since the balloon began with an original velocity of zero how far above
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T=2,5s
a=g≈10m/s²

h=s=?

s= \frac{1}{2} at^2 \Leftrightarrow h=\frac{1}{2}gt^2=\frac{1}{2}*10m/s^2 *(2,5s)^2=5m/s^2* \frac{25}{4} s^2=\boxed{31,25m}



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Identify the correct sequence for the formation and use of coal.
Zanzabum

The correct answer is - A. Plants store solar energy; the plants die; the plants are compressed; solar energy is released;

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After scientists analyze the results of their experiments they
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A sphere has a surface uniformly charged with 3.30 C. At what distance from its center is the potential 4.50 MV
Bogdan [553]

Answer:

r = 6.6 x 10³ m = 6600 m

Explanation:

The potential at a distance from a charged sphere can be given as follows:

V = \frac{kq}{r}\\\\r = \frac{kq}{V}

where,

r = distance = ?

k = Colomb Constant = 9 x 10⁹ Nm²/C²

q = charge on sphere = 3.3 C

V = potential = 4.5 MV = 4.5 x 10⁶ V

Therefore,

r = \frac{(9\ x\ 10^9\ Nm^2/C^2)(3.3\ C)}{4.5\ x\ 10^6\ V}

<u>r = 6.6 x 10³ m = 6600 m</u>

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Hi there! :D

Which scientist was the first to propose the heliocentric model of the universe


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