Question

In: Physics

A charge Q1 = +4.2 μC is fixed along the y-axis at a distance d =...

A charge Q₁ = +4.2 μC is fixed along the y-axis at a distance d = 1.4 m below the origin. A second charge Q₂ = +1.6 μC is placed at at a distance d = 1.4 m above the origin as shown.

1)

What is the magnitude of the net force on Q₂ due to Q₁?

0.0202 N

0.00293 N

0.0077 N

0.0308 N

Your submissions:

C

Submitted:

Monday, August 31 at 5:48 PM

Feedback:

Feedback will be given once all questions have been attempted and the Grade cluster button has been pressed.

2)

What is the direction of the net force on Q₂ due to Q₁?

up

down

neither

3)

Now a 3rd charge, Q₃ = -4.2 µC (the same magnitude as Q₁), is placed a distance 4d = 5.6 m above the origin. How will the magnitude of the net force on Q₂ change?

The net force on Q₂ will increase.

The net force on Q₂ will decrease.

The net force on Q₂ will not change.

4)

The 3rd charge can now be changed to any value. In order to make the net force on Q₂ equal zero, what must be true about the sign of Q₃?

Q₃ must be positive.

Q₃ must be negative.

No value of Q₃ will make the net force on Q₂ equal zero.

5)

In order to make the net force on Q₂ equal zero, what must be true about the magnitude of Q₃?

|Q3|=|Q1||Q3|=|Q1|

|Q3|=32|Q1||Q3|=32|Q1|

|Q3|=94|Q1||Q3|=94|Q1|

|Q3|=4|Q1||Q3|=4|Q1|

|Q3|=16|Q1||Q3|=16|Q1|

No value of Q₃ will make the net force on Q₂ equal zero.

Expert Solution

genius_generous answered 2 years ago

A 5.1 μC point charge is on the x-axis at 3.4 m, and a 4.2 μC...

A 5.1 μC point charge is on the x-axis at 3.4 m, and a 4.2 μC point charge is on the x-axis at 4.4 m. Find the magnitude of the net electric field at the point on the y-axis where y = 2.2 m . The value of the Coulomb constant is 8.98755×10 N·m /C . Answer in units of N/C. Determine the direction of this electric field (as an angle between −180◦ and 180◦ mea- sured from the positive...

A charge of -7.00 μC is located on the y axis at y = 3.00 cm....

A charge of -7.00 μC is located on the y axis at y = 3.00 cm. A charge of 8.00 μC is located on the y axis at y = -3.00 cm. Find the force on a -1.47 μC charge on the x axis at x = 8.50 cm. Give only the magnitude of the force.

Three point charges lie in a straight line along the y-axis. A charge of q1 =...

Three point charges lie in a straight line along the y-axis. A charge of q1 = -9.70 µC is at y = 6.80 m, and a charge of q2 = -8.30 µC is at y = -4.20 m. The net electric force on the third point charge is zero. Where is this charge located? y = m An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting...

A charge per unit length λ = +6.00 μC/m is uniformly distributed along the positive y-axis...

A charge per unit length λ = +6.00 μC/m is uniformly distributed along the positive y-axis from y = 0 to y = +a = +0.400 m. A charge per unit length λ = -6.00 μC/m, is uniformly distributed along the negative y-axis from y = 0 to y = –a = -0.400 m. What is the magnitude of the electric field at a point on the x-axis a distance x = 0.271 m from the origin?

Two point charges are fixed on the y axis: a negative point charge q1 = -30...

Two point charges are fixed on the y axis: a negative point charge q1 = -30 μC at y1 = +0.22 m and a positive point charge q2 at y2 = +0.37 m. A third point charge q = +9.8 μC is fixed at the origin. The net electrostatic force exerted on the charge q by the other two charges has a magnitude of 20 N and points in the +y direction. Determine the magnitude of q2.

Two point charges are held fixed on the y-axis: negative charge #1, q1 = −6.30 ✕...

Two point charges are held fixed on the y-axis: negative charge #1, q1 = −6.30 ✕ 10−9 C, is located at the origin; charge #2, a positive charge, q2 = +8.30 ✕ 10−9 C, is located at the point (x=0, y=+4.00✕10−2 m). Consider the point (x=0, y=−7.00✕10-2 m) on the negative y-axis for parts (a.), (b.), and (c.). Additionally, consider the point (x=+4.00✕10-2 m, y=0) on the positive x-axis for parts (d.) and (e.). Recall, Coulomb's constant: ke = 8.9876...

Two particles are fixed on an x axis. Particle 1 of charge 49.0 μC is located...

Two particles are fixed on an x axis. Particle 1 of charge 49.0 μC is located at x = -34.5 cm; particle 2 of charge Q is located at x = 33.6 cm. Particle 3 of charge magnitude 43.9 μC is released from rest on the y axis at y = 34.5 cm. What is the value of Q if the initial acceleration of particle 3 is in the positive direction of (a) the x axis and (b) the y...

Two particles are fixed on an x axis. Particle 1 of charge 57.8 μC is located...

Two particles are fixed on an x axis. Particle 1 of charge 57.8 μC is located at x = -12.7 cm; particle 2 of charge Q is located at x = 16.3 cm. Particle 3 of charge magnitude 40.6 μC is released from rest on the y axis at y = 12.7 cm. What is the value of Q if the initial acceleration of particle 3 is in the positive direction of (a) the x axis and (b) the y...

Two particles are fixed on an x axis. Particle 1 of charge 51.4 μC is located...

Two particles are fixed on an x axis. Particle 1 of charge 51.4 μC is located at x = -22.8 cm; particle 2 of charge Q is located at x = 10.8 cm. Particle 3 of charge magnitude 20.8 μC is released from rest on the y axis at y = 22.8 cm. What is the value of Q if the initial acceleration of particle 3 is in the positive direction of (a) the x axis and (b) the y...

A charge q1 = 1.62 µC is at a distance d = 1.63 m from a...

A charge q1 = 1.62 µC is at a distance d = 1.63 m from a second charge q2 = −4.87 µC. https://www.webassign.net/webassignalgphys1/19-p-029-alt.gif (a) Find the electric potential at a point A between the two charges that is d/4 from q1. Note that the location A in the diagram above is not to scale. (b) Find a point between the two charges on the horizontal line where the electric potential is zero. (Enter your answer as measured from q1.)