Answer:
KE = 1.05 x105 Joules
Explanation:
KE = 4 * (1.04653 x 105 J) = 4.19 x 105 Joules.
Answer: A,C,D,E are correct statements of an inductor
A. When an inductor and a resistor are connected in series with a DC battery, the current in the circuit is reduced to zero in one time constant.
C. An inductor always resists any change in the current through it.
D. When it is connected in a circuit, an inductor always resists having current flow through it.
E. Inductors store energy by building up charge.
The answer is 0.000824653J
You need to use the formula Mass * Velocity^2 over 2
1.0 joule= 1.0 newtons × 1.0 meter = 1.0 newton × meter
Work = 10 newtons × 5 meters = 50 newton × meter
Answer: a. -720m/s^2
b. Yes, airbags will deploy
Explanation:
The formula for acceleration is:
= (Final velocity - Initial velocity)/Time
Final velocity = 0m/s
Initial velocity = 36m/s
Time taken = 0.05s
= (Final velocity - Initial velocity)/Time
= (0 - 36)/0.05
= -36/0.05
= -720m/s^2.
Since it's negative, it shows that there was a deceleration.
2. Yes the airbag will deploy since the acceleration gotten is more than -600 m/s^2.
