Underground water is to be pumped by a 78% efficient 5kW submerged pump to a pool whose free surface is 30m above the underground water level. The diameter of the pipe is 7cm on the intake side
and 5cm on the discharge side. Determine:
(a) the maximum flow rate of water
(b) the pressure difference across the pump.
Assume the elevation difference between the pump inlet and the outlet and consider the effect of
kinetic energy correction factors to be negligible.

part 1: describe the mass and the surface temperature of dwarf stars.

part 2: explain using complete sentences where on the hr diagram you would expect to find a dwarf star based on its physical properties.

part 1: the mass of a dwarf star is very small and the surface temperature of dwarf stars are high and they have the lowest absolute brightness.

part 2: on the hr diagram you would expect to find a dwarf star based on its physical properties at an absolute brightness of -2 to -4

hope this