Which devices use electromagnets? check all that apply. commutators cranes solenoids generators audio speakers motors

Free points + brainliest! answer this correctly and you shall receive! to obtain a class e license, you don’t need to a. be at least 16 years old b. complete a tlsae course c. pass the driving skills test d. be a u.s. citizen

Type the correct answer in each box. use = 3.14 and if necessary, round your answers to the nearest hundredth. the area of the largest cross section of a sphere and the circumference of the sphere are in the ratio 4: 1. cm. the area of the largest cross section is about the radius of the sphere is cm. the circumference of the sphere is about cm2. the volume of the sphere is about cm?

The color contrast between the open ocean and the lagoon between the spit and the mainland. the greater concentration of suspended sediments in the lagoon gives the waters a more turbid appearance. the source of sediment in the lagoon is (are) [(rivers and streams from the mainland) (wind-borne sediment from the spit) (ocean waves washing over the spit) (all of these contribute)].