An all-electric car (not a hybrid) is designed to run from a bank of 12.0 V batteries with total energy storage of 2.10 ✕ 107 J.
(a) If the electric motor draws 7.20 kW as the car moves at a steady speed of 20.0 m/s, what is the current (in A) delivered to the motor? A
(b) How far (in km) can the car travel before it is "out of juice"? km
(c) What If? The headlights of the car each have a 35.0 W halogen bulb. If the car is driven with both headlights on, how much less will its range be (in m)? m

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15-07-2024
Physics

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An all-electric car (not a hybrid) is designed to run from a bank of 12.0 V batteries with total energy storage of 2.10 ✕ 107 J.
(a) If the electric motor draws 7.20 kW as the car moves at a steady speed of 20.0 m/s, what is the current (in A) delivered to the motor? A
(b) How far (in km) can the car travel before it is "out of juice"? km
(c) What If? The headlights of the car each have a 35.0 W halogen bulb. If the car is driven with both headlights on, how much less will its range be (in m)? m

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