Answer:
a)
b)
Explanation:
Given:
- initial temperature of water,
- volume flow rate of water in to the heating section,
∵1L of water = 1 kg by mass
∴
- final temperature of water,
- diameter of insulated pipe,
(a)
we have,
Specific heat capacity of water,
<u>The amount of heat to be supplied per min to the water:</u>
∴Power required is 73.225 kW.
(b)
∵Volume flow rate,
<u>Now area of pipe:</u>
∴Flow velocity
Answer: 11%
Explanation:
Given that
X = ab^2/C. Calculate percentage error in X, when percentage error in a,b,c are 4,2 and 3 respectively.
Percentage error of b = 2%
Percentage error of b^2 = 2 × 2 = 4
When you are calculating for percentage error that involves multiplication and division, you will always add up the percentage error values.
Percentage error of X will be;
Percentage error of a + percentage error of b^2 + percentage error of c
Substitute for all these values
4 + 4 + 3 = 11%
Therefore, percentage error of X is 11%
Answer:
Explanation:
Torque due to applied force along its surface is given as
here we know that
r = radius of earth =
Now we have
now we know that
initial angular speed of Earth is
final angular speed will be
so now we have
here we have moment of inertia of Earth is given as
now we have
Explanation:
T=1/f
So if frequency increases the period will decrease