An infinite plane of charge has a surface charge density of 5 µc/m2 . how far apart are the equipotential surfaces whose potentials differ by 105 v? the permittivity of free space is 8.85 × 10−12 c 2 /n · m2 . answer in units of mm.

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

The material that keeps its new shape after it is stretched is called?

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db