2. An electric drive features a 24 kWh battery pack and has a range of 170 km at a constant speed of 88 km/h. What is the new range when traveling at 88 km/h if the heating, ventilation, and air conditioning draw a constant power of 6 kW?
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- B97. In an experiment, a small 20 W motor is used to lift a 100 g mass through a vertical distance. a) If the motor runs for 40 s, how much potential energy does the mass gain? b) How high can the mass be lifted in 40 s?You place an ice cube in a microwave oven. If it requires 32,165 J to melt the ice cube and the oven delivers 98 W of power to the ice cube, determine the time (in min) needed to melt the ice cube. min
- I drive a Nissan Leaf to work. With the e-pedal on, the motor recovers energy through braking very aggressively. I need about 7 KW-hour to come to school if I use mostly the freeways. That’s about 5 KW-hour if I take mostly local streets. From the energy perspective, can you offer an explanation to explain this difference?1. A box with a mass of 3.0 kg is accelerated from rest by a constant force across a floor at a rate of 1.7 m/s for 6.5 s. (a) How much work does the force do on the box? (b) How much power is produced by the force in moving the box?7. Car 1 has half the mass of car 2, but they both have the same kinetic energy. If the speed of car 1 is v = 10.0 m/s, what is the speed of car 2?
- A demolished car weighing 15,000 N is picked up by an electromagnet on a crane in a junkyard. It lifts the car 10 meters in 4 seconds. What is the output power rating of the crane? The correct answer is 37,500 W.Initially at rest H.1. A certain car can accelerate from rest to the speed v in T seconds. If the power output of the car remains constant, (a) how long does it take for the car to accelerate from v to 2v? (b) How fast is the car moving at 2T seconds after starting? Explain and draws.
- An electric winch causes an elevator to move between floors of a ten-story building. The mass of the elevator with a maximum load of passengers is at most 500. kg. The elevator moves a speed of 0.304 m/s taking a time of 115.s to travel the distance of 35.0 m. What is the minimum power rating this winch would have? Select one: a. b. C. d. 1.49 x 10³ W 1.30 x 10¹ W 4.90 x 10³ W 1.72 x 105 W4. How many joules of energy does a 100-watt light bulb use per hour? How fast would a 70-kg person have to run to have that amount of kinetic energy?Hello, please answer as soon as possible. Choose from the given choices/options below the question. Show complete solution. Thank you for your help. I’ll rate you with like/upvote.