During a snow survey, the data of a snow sample collected are given below:

Depth of snow sample

$2$ m

Weight of tube and sample

$25$ N

Weight of sample tube $20$N Diameter of tube $40$mm

Determine

$1.$ the density of snow

$2.$ the water equitalent of snow

$(3)$ the quality of snow, of the final temperature is $5\backslash$deg C when $4$ lit. of water at $15\backslash$deg C is