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Marianna [84]
3 years ago
11

which way would 2 negatively charged balloons naturally move? what would that do to the amount of potential energy stored in the

field?
Physics
1 answer:
zheka24 [161]3 years ago
5 0

Answer:

gsg

Explanation:

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16. The energy absorbed in 10minutes by an electrical heater is 1.5 MJ. The supply voltage is 240 V. calculate: a) The current d
dsp73

Answer:

If by 1.5 MJ you mean 1.5E6 Joules then

W = P t    = power X time

W / t = P   power

P = 1.5E6 J / 600 sec = 2500 J / s

P = I V

a) I = 2500 J/s / (240 J/c) = 10.4 C / sec  = 10.4 amps

b) Q = I t = 10.4 C / sec * 300 sec = 3120 Coulombs

c)  E = P * t = 2500 J / sec * 100 hr * 3600 sec / hr = 9.0E8 Joules

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3 years ago
A student wants to determine the density of titanium. The student measures the mass of a solid chunk of titanium, but when he dr
aliya0001 [1]

Answer:

Lower than it should be.

Explanation:

Hello.

In this case, since the density is computed by:

\rho =\frac{m}{V}

And we obtain the volume of the solid by substracting the mass of the water and the solid minus the mass of water:

V_{solid}=V_{solid\ with \ water}-V_{water}

If some water is splashed out of the cylinder, the volume of water will be lower than originally measured, it means that the volume of the solid will be higher than real. In such a way, since the density is in an inversely proportional relationship with volume, as the volume of the solid is wrongly increased, therefore the density of the solid will be lower than in should be.

Regards.

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What can you conclude about the figure
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A is the correct answer to the question
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