1) The car burns 6.9 kg of petrol on a 110 km road. The average engine power was 13 kW and the average speed of the car was 75 km / h. Calculate the NK of the car. 2) After driving 100 km, the car burns 8 l of petrol. How much heat is released when this gasoline burns? Gasoline density 710 kg / m3.

3) 960 t of coal is burned per day in the boiler furnace of a 100 MW steam turbine boiler. Calculate the efficiency of this turbine.

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

answer: 31, 5556. 952 seconds