B) A block of wood of volume 100cm floats in a liquid of relative density 1.2 with 75cm of it
immersed. What mass of glass of relative
density 2.4 placed on the wood would just
cause total immersed of both.​

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.