sphere of charge

Please solve step by step as simply as possible. The teacher gave this info out, but I can't make sense of it. I don't think it's even right - is it? Questions: (a) what is the electric field ... (b) what is the field befpre and the field after A touches B (c) B touched to A, thn placed at ... (d) What is potential at ...continues

Charges

PLEASE solve step by step as simply as possible and show all math and answers please. Solve all the way through. The teacher gave this info out, but I don't even know if it makes sense ... Questions: a) Find the potential energy of the system of 3 charges ... b) What is the dipole moment of this dipole ... given these 2 ...continues

electrical torque

PLEASE solve step by step as simply as possible and show all math and answers please. Solve all the way through. The teacher gave this info out, but I don't understand it. Questions a) what is the magnitude and direction this field exerts ... b) What ist he PE of the dipole ... Please see attached for compelte questi ...continues

Surface density; Dipole moment

PLEASE solve step by step as simply as possible and show all math and answers please. Solve all the way through. The teacher gave this info out, but I can't make sense of it. Questions: 5. a) What is the dipole moment? 6. a) What is the surface charge density b) What is the electric field in terms of ... at the surfa ...continues

torque

PLEASE solve step by step as simply as possible and show all math and answers please. Solve all the way through. The teacher gave this info out, but I can't make sense of it. a) Given the attached information, what is the dipole moment?

sphere of charge

PLEASE solve step by step as simply as possible and show all math and answers please. Solve all the way through. The teacher gave this info out, but I don't get it. a) what is electric field here in magnitude and direction ... See attached for complete questions. Thanks.

electrical problem for fields

This eletrical problem for fields is basically solved, but I need you to redo and or look over what I have to make sure all is correct and that I'm not missing any steps - all t's crossed and i's dotted so to say please.

solid copper sphere

Problem given with partial solve; needs questions A and B answered though. Attachment 8a is the questions, then attachment 8b is the solutions to questions A and B. But it is all jumbled and steps missing and I need this all redone so there is some flow to all of it and it makes sense as simply as possible.

Sound waves

What is the power of a sound wave (B = 32 dB) passing through an area of 12.5 cm ^2? Suppose the same sound wave passes through an area of 25 cm^2. What is its intensity level?

Sound Waves

A steel guitar string has a length of 74 cm and thickness of 0.37 mm. It is under 35N tension. Calculate the wave speed in the string. The density of steel rho=7.84 x 10^3 kg/m^3.