A 10-cm-long thin glass rod uniformly charged to 5.00nC and a 10-cm-long thin plastic rod uniformly charged to - 5.00nC are placed side by side, 3.50cm apart. What are the electric field strengths E1to E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods?Specify the electric field strength E1,E2,andE3

a)Discuss how a voltmeter should be connected in a circuit so that the circuit, within experimental uncertainties, remains unchanged. Explain why it does not affect the circuit when properly connected?

b)Discuss how an ammeter should be connected in a circuit so that the circuit, within experimental uncertainties, remains unchanged. Explain why it does not affect the circuit when properly connected?

c)Discuss how the voltage changes when resistors are connected in series?

d)Discuss how the current changes when resistors are connected in series?

Answer each question and do not just copy paste information from websites, person who does this the best will receive 1050 points !

Two point charges, -10nC and +18nC are held fixed at a distance of 0.55m apart. Assume that both charges lie on the x-axis, for the -10nC x=0 and for the +18nC charge x=0.55m.

Where can a +20nC charge be placed so that the net force on it is zero?

Where can a -20nC charge be placed so that the net force on it is zero?

A -15nC charge is located at (x, y) = (1.2cm , 0 cm).

What is the x-component of the electric field at the position (x, y) = (0 cm, 4.0cm )?

What is the y-component of the electric field at the position (x, y) = (0 cm, 4.0cm )?

Consider a simple model of the hydrogen atom where 1 electron is in a stable orbit around 1 proton at a distance of 0.05 nm. If the electron were moved to a larger stable orbit (say 0.1 nm), what would be the sign of: deltaU = the change in potential energy? deltaK = the change in kinetic energy? deltaE = the change in mechanical (potential plus kinetic) energy? Would moving the electron to a higher orbit require positive or negative work from external forces?

A particle with a charge of 32.8 moves with a speed of 67.2 m/s in the positive direction. The magnetic field in this region of space has a component of 0.462 T in the positive direction, and a component of 0.849 T in the positive direction. What is the magnitude of the magnetic force on the particle?

What is the direction of the magnetic force on the particle relative to the positive -axis?

Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. An ideal gas in a cylinder is at 11?C and 4.0atm . If it is heated so its rms speed increases by 20{\rm \\%} , what is its new pressure?

A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d. The inner shell has a total charge of -2q and the outer shell has a total charge of +4q.

Select True or False for the following statements.
True False  The radial component of the electric field in the region r > d is given by +4q/(4??₀r²).
True False  The radial component of the electric field in the region c < r < d is given by -2q/(4??₀r²).
True False  The total charge on the inner surface of the small shell is zero.
True False  The total charge on the outer surface of the large shell is +2q.
True False  The total charge on the inner surface of the large shell is +2q.
True False  The total charge on the outer surface of the small shell is -6q.
True False  The radial component of the electric field in the region r < a is given by +2q/(4??₀r²).

In the first stage of a two-stage rocket, the rocket is fired from the launch pad starting from rest but with a constant acceleration of 3.50 m/s2 upward. At 25.0 s after launch, the second stage fires for 10.0 s, which boosts the rocket�s velocity to 132.5 m/s upward at 35.0 s after launch. This firing uses up all the fuel, however, so after the second stage has finished firing, the only force acting on the rocket is gravity. Air resistance can be neglected.

Part A

Find the maximum height that the stage-two rocket reaches above the launch pad.?

Part B

How much time after the stage-two firing will it take for the rocket to fall back to the launch pad?

Part C

How fast will the stage-two rocket be moving just as it reaches the launch pad?

A charge of -8.50nC is spread uniformly over the surface of one face of a nonconducting disk of radius 1.00cm .

Part A

Find the magnitude of the electric field this disk produces at a point P on the axis of the disk a distance of 2.50cm from its center.

ANSWER:

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Part B

Suppose that the charge were all pushed away from the center and distributed uniformly on the outer rim of the disk. Find the magnitude of the electric field at point P.

ANSWER:

Part C

If the charge is all brought to the center of the disk, find the magnitude and direction of the electric field at point P.

ANSWER:

Part D

Why is the field in part (a) stronger than the field in part (b)?

ANSWER:

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Part E

Why is the field in part (c) the strongest of the three fields?

ANSWER:

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Firstly, I understand that we have no observational evidence for 'wormholes'. They are theorised solutions to general relativity equations.

That said, if macroscopic wormholes do exist---how do they work? I've been thinking about this for the past couple of days, and I have some questions.

What does the mouth of a wormhole look like? I've seen this; is that more or less accurate?
If I place one end of a wormhole in a high magnetic field, and the other end on my desk, will all my ferrous objects fly into the wormhole?
If so, with what force? What does the magnetic field look like at each end of the wormhole?
If the distance between the mouths of the wormhole was comparable to the force that the magnets exert, would the magnet 'pull' on itself and draw itself into the wormhole?

Do any of these questions even make sense?

Baryons in quantum chromodynamics can be described as a bound state of three quarks. But they can also be described as a topological soliton of the pion field. How can both descriptions be equivalent?

If we couple a Yang-Mills theory with a Higgs field and some quarks in the fundamental representation, we can have a Higgs phase and a confining phase. However, they are indistinguishable. The Wilson loops scale according to the perimeter law, not the area law in the confining phase because of hadronization. In the Higgs phase, there is no cluster decomposition for the Higgs field because distant points have to be connected by a Wilson line with exponential falloff as the length of the Wilson line.

Why are both phases indistinguishable?

A hollow metal sphere has inner and outer radii of 20.0 cm and 30.0 cm, respectively. As shown in the figure, a solid metal sphere of radius 10.0 cm is located at the center of the hollow sphere. The electric field at a point P, a distance of 15.0 cm from the center, is found to be E₁ = 5.53

Two 45.0 x 10^-9 C point charges are located on the x axis. One is at x = 0.25 m, and the other at x = - 0.25 m.

a) A third identical charge is placed on the y axis at y = 0.25 m. Find the magnitude of the force acting on this third charge? Answer in Newtons.

b) Now the third identical charge is placed on the y axis at y = 2 x 0.25 m. Find the magnitude of the force acting on this third charge? Answer in Newtons.