What is the power of electric vehicle? What is the power of cable car? What is the power of rocket?

The electric energy is converted into kinetic energy by the engine and powered by electricity
The wire rope is driven by the driving machine
Kerosene, alcohol, unsymmetrical dimethylhydrazine and liquid hydrogen are used as combustion agents for launch vehicles, while nitric acid and liquid nitrogen are used as oxidants to help combustion generate thrust

Taipingshan cable car, aircraft, ships are powered by gravity

The cable car moves downward by gravity

Among the following inventions, a train B car C tram D plane has the characteristics of industrial revolution vehicles and the power of the second industrial revolution

Train is the product of the first industrial revolution. The power of the second industrial revolution is mainly electricity. Cars and airplanes are not powered by electricity. Only trams can meet the demand, and the time is also in line

As a new power vehicle, electric bicycle is more and more popular
Before using an electric vehicle, it is necessary to charge the battery on the vehicle first, and then use the battery to provide power to the motor on the vehicle. The following table shows some main series parameters of a certain brand of electric vehicle. The maximum speed is ≤ 30 km / h, the continuous driving distance is 50 km, the working voltage of the battery is 36 V, and the charging time is 8 hours, The power consumption for one charge is 0.6 (kW. H) (1) if the motorcycle consumes 2.5 liters of fuel per 100 km, 5.45 yuan for each liter of fuel, and 0.55 yuan for lighting, it is more economical to use electric vehicles than motorcycles. (2) electric vehicles use batteries, which cause less emission and noise pollution, and are environmental protection products, but many opponents think that if they are not handled properly, electric vehicles will do great harm to the environment, What does the opponent mean by "great harm to the environment"

The main reason is that the battery waste of electric vehicles (especially lead-acid batteries) will bring harm to the environment (such as soil, air, water quality, etc.), so the waste batteries should be handed over to the electric vehicle after-sales service center for centralized treatment. Now many electric vehicles use lithium batteries, which will greatly reduce the environmental pollution

Seek the secret book of all cars, airplanes, ships and various means of transportation in holy land of Antilles
Which key is forward after the plane takes off?

If you want to search for the secret script, you will find a bunch of patch modifier secret scripts
When the aircraft flies up, it accelerates in W direction, decelerates in s direction, leans left in a direction, leans right in D direction, leans left in Q direction, leans right in e direction and retracts landing gear in 2 direction
The cursor is pointing down
The cursor is tilted to the right
The cursor is tilted to the left
The cursor is pointing up
Pay attention not to enable the mouse flight, otherwise it is difficult to control

For a car driving on the road, why is the gravity and the supporting force of the ground on the car a balancing force

This is not entirely true because the buoyancy of the air and the centrifugal force of the earth's rotation are ignored
Like a sunken ship on the sea floor, an object is subjected to four forces in the vertical direction: gravity, the supporting force of the earth's crust, the centrifugal force produced by the earth's rotation, and buoyancy (produced by liquid or gas), The buoyancy of air is so small that it can be ignored
Therefore, in the "ideal state", the vehicle on the road is only affected by gravity and ground supporting force in the vertical direction. However, the vehicle does not displace in the vertical direction. Therefore, the conclusion that the two forces are balanced can be drawn, and the viewpoint of the topic can be regarded as correct in this case

The resistance of a car with a mass of 2T when driving on a straight road is 0.2 times of the gravity of the car. It first drives at a constant speed for 2km on a horizontal road, then stops after turning off the engine and taxiing for 50m
Work done by power on a car

Because of uniform velocity, power equals resistance
F=0.2G=0.2*2000*10=4000N
W=FS=4000*2000=8000000J
When taxiing, there is no power, so the power does not work when taxiing

Does the gravity of the car do work on the car when the car runs at a constant speed on a horizontal road?

The car has no displacement in the vertical direction, that is, along the direction of gravity. Of course, it does no work

When the speed is reduced from 7 m / s to 5 m / s, the acceleration of deceleration is m / S 2. After 12 s, the car will slide forward again______________ m. Thank you for the process~~~

V1^2-V0^2=2aS
a=(V1^2-V0^2)/2S
=-0.5m/s2
The size is 0.5m/s2
Stop after T seconds
t=5/1=10s
S=v1*t-1/2at^2=25m
So the acceleration is 1m / S2
25 meters

How to distinguish the pressure of car on the ground from the gravity of car

Pressure acts on the ground, gravity acts on the car
2. On the horizontal ground, pressure is equal to gravity, but on the slope, gravity is greater than pressure
3. The direction of pressure is perpendicular to the ground, and the direction of gravity is always vertical downward
If you don't understand... You can baidu Hi me

What is the power of electric vehicle? What is the power of cable car? What is the power of rocket?