Author Question: Assuming equal rates of acceleration in both cases, how much longer would it take a car to stop if ... (Read 60 times)

tiffannnnyyyyyy · **on:** Jul 29, 2018

Assuming equal rates of acceleration in both cases, how much longer would it take a car to stop if braking from 56 mi/h than from 28 mi/h?

A) 8 times as long
B) 4 times as long
C) 2 times as long
D) 1.4 times as long
E) the same in both cases

Question 2

A series LR circuit consists of a 2.0-H inductor with negligible internal resistance, a 100-ohm resistor, an open switch, and a 9.0-V ideal power source. After the switch is closed, what is the maximum power delivered by the power supply?

A) 8.1 W B) 0.090 W C) 0.81 W D) 81 W E) 0.40 W

T4T · **Reply #1 on:** Jul 29, 2018

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