Estimate the radial acceleration (m/s2) of the toe at the end of the horizontally extended leg of a ballerina doing a pirouette. Assume the length of ballerina's leg to be 0.80 m. Suppose that she completes a full turn in 1.0 s. Determine its acceleration during this launch

What is the fate of the electrons that interact with a specimen in an electron microscope?

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.