Incompressible oil of density 850 kg/m³ is pumped through a cylinderical pipe at a rate of 9.5 Litre per second. A ) The first section of a pipe has a diameter of 8.0 cm ,what is the flow speed of the oil ? And also what is the mass flow rate ?
B ) The second section of a pipe has a diameter of 4.0 cm , what is the flow speed and the mass flow rate at this section ?

The rocky mountain system stretching from canada to new mexico is a string of mountains running along the wester united states. what factors would mostly cause this arrangement of mountains? intense pressure undemeath a tectonie plate that could not breakthrough the rock subduction of a tectonic plate, which pushed up a neighboring plate into mountains two plates located at a diverging boundary with a third plate rising between them two plates that melted into molten rock, which later cooled into the shape of mountains

Equilateral triangle pbj is inscribed in a circle as shown. determine the measure of arc pjb.

What is the amount of organic matter in all living organisms in a habitat called?