Answers by visitors named: Yusuf

The oxidation number of sulphur in cuso4.5H2O is

Calculate the heat required to raise the temperate of 10kg of copper perform from 20c to 30c specific capacity of copper= 400j/kgk

A stone propelled from a catapult with a speed of 50m-s attains a height of 100m calcutate

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It is NOT $1.39 per square feet, it is $0.72 per square feet.

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Yes

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1.u=0 V=u+at=0+8*30=240

1)v1=u+a1t1=0+(8*3)=240m/s 2)v2=v1+a2t2=240+(-5)*20=140m/s 3)total area convered in 50s=Area of motion in 30s+Area of motion in 20s=area of triangle + area of parallelogram=1/2*30*240+1/2(240+140)*20=7400m 4)average speed=total distance covered in 50s/50s...

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