Physics, 06.05.2020 02:03 dorothybean

Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude F due to the other. With time, charge gradually diminishes on both spheres by leaking off.
1. When each of the spheres has lost half its initial charge, what will be the magnitude of the electrostatic force on each one?
A) 1/16 F
B) 1/8 F Coulomos coulombs Law
C) 1/4 F
D) 1/2 F
E) 1/√ 2 F

Answers: 3

Show answers

Answers

Answer from: maribelarreolap4sgpj

C) 1/4 F

If we assume the small chargued spheres as a point chargues, we can use the Coulomb's law. According to this law, the magnitude of the electrostatic force between two point chargues is directly proportional to the product of the charges and inversely proportional to the square of the distance between them:

$F=k\frac{q_1q_2}{d^2}$

In this case, we have: $q_1'=\frac{q_1}{2}$ , $q_2'=\frac{q_2}{2}$ and d'=d . Thus, the new magnitude of the electrostatic force on each one is:

$F'=k\frac{q_1'q_2'}{d'^2}\\F'=k\frac{(\frac{q_1}{2})(\frac{q_2}{2})}{d^2}\\F'=k\frac{q_1q_2}{4d^2}\\F'=\frac{1}{4}k\frac{q_1q_2}{d^2}\\F'=\frac{1}{4}F$

Answer from: Quest

a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be?

Answer from: Quest

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm. the wire diameter is d = 0.9 mm. the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2) in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

Another question on Physics

Physics, 21.06.2019 21:50

What is the length x of the side of the triangle below? (hint: use the cosine function)

Answers: 1

Answer

Physics, 22.06.2019 05:10

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

Answers: 2

Answer

Physics, 22.06.2019 19:40

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?

Answers: 1

Answer

Physics, 22.06.2019 21:20

Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.

Answers: 3

Answer

You know the right answer?

Two identical small charged spheres are a certain distance apart, and each one initially experiences...

Questions