Calculate the heat produced from burning 10 kg of each type of fuel. Multiply the water converted to steam in kilograms (kg) by 2258kJ/kg, the heat of vaporization. The result of your calculation will be in kilojoules, mwater x 2258 kJ/kg = DQwater Wood - Fuel Mass (10kg), Water to Steam (90kg), Electricity (19KWh)
Coal - Fuel Mass(10kg), Water to Steam (140kg), Electricity (29KWh)
Oil - Fuel Mass (10kg), Water to Steam (190kg), Electricity (41KWh)
Methane - Fuel Mass (10kg), Water to Steam (240kg), Electricity (51KWh)
Please show the break down of each fuel.

Explanation:

1) For 10 kg of mass of wood

The mass of Water steam is 90kg

The heat produces by the fuel is

= 90kg x heat of vaporization

= ( 90kg x 2258kJ/kg)

= 203220kJ

2) For 10 kg of mass of coal

The mass of Water steam is 100kg

The heat produces by the fuel is

= 100kg x heat of vaporization

= ( 140kg x 2258kJ/kg)

= 316120kJ

3) For 10 kg of mass of wood

The mass of Water steam is 190kg

The heat produces by the fuel is

= 190kg x heat of vaporization

= ( 190kg x 2258kJ/kg)

= 429020kJ

4) For 10 kg of mass of wood

The mass of Water steam is 240kg

The heat produces by the fuel is

= 240kg x heat of vaporization

= ( 240kg x 2258kJ/kg)

= 541920kJ

explanation:

could i give you a exaplo that could you?

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.