3 years ago

Help with this voltage drop? I'd also like to know how you did it.

Physics

1 answer:

grandymaker [24]3 years ago

4 0

No one answeres physic questions, iveneeded help all morning

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As the water molecules heat up they become more dense and float to the top. True or False

miss Akunina [59]

Answer: False but read why

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3 years ago

Suppose that the electric field in the Earth's atmosphere is E = 8.60 101 N/C, pointing downward. Determine the electric charge

asambeis [7]

Answer:

q = 3.87 x 10⁵ C

Explanation:

given,

Electric field, E = 8.60 x 10¹ = 86 N/C

radius of earth, R = 6371 Km = 6.371 x 10⁶ m

Coulomb constant, K = 9 x 10⁹ N · m²/C²

Charge on the earth = ?

the electric field at the point

$E =\dfrac{kq}{r^2}$

$q =\dfrac{Er^2}{k}$

inserting all the values

$q =\dfrac{86\times (6.371\times 10^6)^2}{9\times 10^{9}}$

q = 3.87 x 10⁵ C

The electric charge on the earth is equal to 3.87 x 10⁵ C

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3 years ago

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3 years ago

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A 240 g toy car is placed on a narrow 60-cm-diameter track with wheel grooves that keep the car going in a circle. The 1.0 kg tr

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Answer:

The track's angular velocity is W2 = 4.15 in rpm

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Momentum angular can be find

I = m*r^2

P = I*W

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