Light from distant objects in the universe shifting in frequency towards the red color on the electromagnetic spectrum, tells us that the objects are receding away in space. This is called the a
Doppler Shift
b
Hubble's Laws
c
The Big Bang Theory
d
Dark Matter

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg