Author Question: A 300-Ah battery can deliver how many coulombs starting from a full charge? a. 4.8 103 c. 7.2 ... (Read 80 times)

tiara099 · **on:** Jul 28, 2018

A 300-Ah battery can deliver how many coulombs starting from a full charge?
a. 4.8 103
c. 7.2 105
b. 4.3 104
d. 1.1 106

Question 2

A baseball pitcher, loosening up his arm before a game, tosses a 0.15-kg ball using only the rotation of his forearm, 0.32 m in length, to accelerate the ball. If the ball starts at rest and is released with a speed of 24 m/s in a time of 0.40 s, what is the average angular acceleration of the arm and ball?
a. 0.067 rad/s2
c. 15 rad/s2
b. 94 rad/s2
d. 190 rad/s2