Which of the following situations represents a negative displacement? (assume positive position is measured vertically upward along a y-axis.) a. a cat stands on a tree limb. b. a cat jumps from the ground onto a tree limb. c. a cat jumps from a lower tree limb to a higher one. d. a cat jumps from a tree limb to the ground. select the best answer from the choices provided a b c d

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?