A spider walks a distance of 0.2 m at a constant speed of 0.1 m/s. The time interval is A.2 s
B.0.02s
C.0.5s
D.20s

A. 2s

Explanation:

time = distance ÷ speed

T = .2 ÷.1

T= 2

it about 600 mph from what i calculated

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.