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grin007 [14]
3 years ago
5

The electric force between two charged objects depends on which of the following

Physics
2 answers:
emmainna [20.7K]3 years ago
6 0
<span>The electric force between two charged objects depends on
the product of their charges and the distance between them.</span>
dimulka [17.4K]3 years ago
5 0
C.) Their charge and their separation ..........
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How much gravitational potential energy does a 45.2 kg object have when it is 21.9m above the ground?
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Answer:

Explanation:

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The length of a simple pendulum is 0.66 m, the pendulum bob has a mass of 310 grams, and it is released at an angle of 12 degree
lina2011 [118]
A) the periodic time is given by the equation;
 T= 2π√(L/g)
For the frequency will be obtained by 1/T (Hz)
T = 2 × 3.14 √ (0.66/9.81)
   = 6.28 × √0.0673
    = 1.6289 Seconds
Frequency = 1/T = f = 1/1.6289
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b)  The vertical distance, the height is given by
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 h = 0.65 m
Vertical fall at the lowest point = 0.66 - 0.65 = 0.01 m
Applying conservation of energy
energy lost (MgΔh) = KE gained (1/2mv²)
 mgh = 1/2mv²
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v = 0.443 m/s

c) total energy = KE + GPE = KE when GPE is equal to zero (at the lowest point possible)
Thus total energy is equal to;
E = 1/2mv²
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