Author Question: If the dielectric breakdown field in air is 3 106 V/m, what potential difference is involved with a ... (Read 78 times)

MGLQZ · **on:** Jul 28, 2018

If the dielectric breakdown field in air is 3 106 V/m, what potential difference is involved with a 3 cm spark?
a. 1.0 108 V
c. 9 104 V
b. 9 106 V
d. 1.0 1010 V

Question 2

A Ferris wheel, rotating initially at an angular speed of 0.16 rad/s, accelerates over a 7.0-s interval at a rate of 0.050 rad/s2 . What is its angular speed after this 7.0-s interval?
a. 0.46 rad/s
c. 0.51 rad/s
b. 0.85 rad/s
d. 1.2 rad/s