The density value 3.291 g/ml (gram / milliliter) in words is "three point two nine one g/ml (gram / milliliter)".
=)
Answer:
why compasses point towards the north and south poles of the earth.
Explanation:
hope it helps!!
Answer:
For cast iron we have

For copper

For Lead

For Zinc

Explanation:
As we know that final speed of the block is calculated by work energy theorem

now we have

now we have


For cast iron we have


For copper


For Lead


For Zinc


Basically it is the difference in velocity divided by the time it takes to make that change.