Waves require a medium in order for energy to be transferred. waves can either travel through a medium or through empty space. select one: a. mechanical; electromagnetic b. electromagnetic; compressional c. electromagnetic; mechanical d. compressional; mechanical

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?

Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(ωt). suppose that e0 = 20 v/m and ω = 1.0 × 107 s−1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp,max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?