Two masses are attracted by a force of 20 newtons. What would the force between them be if both masses were tripled?​

What are igneous intrusions and extrusions

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?