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Ganezh [65]
3 years ago
13

1.Are BEVs or hydrogen fuel cell vehicles a more promising transportation technology for the future?

Physics
1 answer:
PIT_PIT [208]3 years ago
5 0

Answer:

1. Yes, BEVs or hydrogen fuel cell vehicles are a more promising transportation technology for the future.

2. Yes, car companies should be require to produce electric cars.

Explanation:

  • BEV stands for battery electric vehicle which is a type of electric vehicle. These vehicle and hydrogen fuel vehicles are a promising transportation technology for future as traditional vehicles along with other factors have polluted the earth so much that now we have to minimize the carbon footprint. The natural resources of fuel are also getting scare. So, these batteries assisted and eco-friendly are the need of the present and are vital in playing a important role in transportation in future.
  • Car companies should be require to produce electric cars as some companies like Tesla has already their electric car in the market lately. The countries in the scandinavian region have adopted the policy to promote and use this vehicles so company come forward to provide eco-friendly and price competitive vehicles so everyone can take the advantage.
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sonic is sliding down a frictionless 15m tall hill. He starts at the top with a velocity of 10m/s. At the bottom of the hill he
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Answer:

The maximum speed of sonic at the bottom of the hill is equal to 19.85m/s and the spring constant of the spring is equal to (497.4xmass of sonic) N/m

Energy approach has been used to sole the problem.

The points of interest for the analysis of the problem are point 1 the top of the hill and point 2 the bottom of the hill just before hitting the spring

The maximum velocity of sonic is independent of the his mass or the geometry. It is only depends on the vertical distance involved

Explanation:

The step by step solution to the problem can be found in the attachment below. The principle of energy conservation has been applied to solve the problem. This means that if energy disappears in one form it will appear in another.

As in this problem, the potential and kinetic energy at the top of the hill were converted to only kinetic energy at the bottom of the hill. This kinetic energy too got converted into elastic potential energy .

x = compression of the spring = 0.89

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How much force is required to accelerate a 2 kg mass at 3 m/s2
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