Answer:
The expression of gravitational field due to mass at a distance
Explanation:
We have given mass is
Distance of the point where we have to find the gravitational field is
Gravitational constant G
We have to find the gravitational filed
Gravitational field is given by
This will be the expression of gravitational field due to mass at a distance
Answer:
Explanation:
We define the linear density of charge as:
Where L is the rod's length, in this case the semicircle's length L = πr
The potential created at the center by an differential element of charge is:
where k is the coulomb's constant
r is the distance from dq to center of the circle
Thus.
Potential at the center of the semicircle
Answer:
The pressure at this point is 0.875 mPa
Explanation:
Given that,
Flow energy = 124 L/min
Boundary to system P= 108.5 kJ/min
We need to calculate the pressure at this point
Using formula of pressure
Here,
Where, v = velocity
Put the value into the formula
Hence, The pressure at this point is 0.875 mPa