Calculate the intensity of the sound waves from an electric guitar’s amplifier at a
distance of 5.0 m when its power output is equal to each of the following values:
a. 0.25 W
b. 0.50 W
c. 2.0 W

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

70 give a real life example showing how sensory neurons work with the motor neurons

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c