A3.49 rad/s (33 rpm) record has a 3.98-khz tone cut in the groove. if the groove is located 0.100 m from the center of the record (see drawing), what is the "wavelength" in the groove?

What are the applications of electromagnetic waves

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.