Answer:
S = 1.144
Explanation:
As we know that when we add or subtract two or more numbers then the final result must have same number of precision as that of numbers given in the problem
here we have
S = 3.15 - 2.006
so we have to give our result with 3 digits after decimal
so we will have
since it must have more precise digits so correct answer after subtraction must be
S = 1.144
Given :
Mass of water, m = 2 grams.
The temperature of water drops from 31 °C to 29 °C .
The specific heat of water is 4.184 J/(g • °C).
To Find :
Amount of heat lost in this process.
Solution :
We know, heat lost is given by :
Therefore, amount of heat lost in this process is 16.736 J.
To solve this problem it is necessary to apply the concepts related to the Moment. The moment in terms of the Force and the time can be expressed as
F = Force
At the same time the moment can be expressed in terms of mass and velocity, mathematically it can be given as
Where
m = Mass
Change in velocity
Our values are given as
By equating the two equations we can find the Force,
Therefore, the net average force will be:
The negative symbol indicates that the direction of the force is upwards.