Mass of methanol = 1.922g; Change in temperature = 5.14° C; Heat capacity of the bomb calorimeter + water = 8.69kJ/°C. Number of moles.
The pressure is the force divided by the area to which the force is applied, so in this problem it is equal to:
Because ot helps us to do our work. it is the capacity of doing work. the energy like mechanical energy, chemical energy etc have been helping humans from almost origin of our life. transformation of energy also helps us grately. in this way energy is essential to our way of life.
Answer:
K.E = 248 J
Explanation:
Since the child is travelling at a given velocity. The kinetic energy of the child down the hill can be given by the following formula:
where,
m = mass of the child = 31 kg
v = velocity of the child = 4 m/s
Therefore,
<u>K.E = 248 J</u>