The advantage of crop rotation was which of the following? a. it allowed more people to works farms. b. it allowed more diverse crops to grow. c. it allowed the soil to restore nutrients. d. it encouraged trade.

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

In science and physics what is the standard unit of measure for speed?