Define specific gravity. What will be an ideal response? ...

[lbcchick]

Define specific gravity.
 
  What will be an ideal response?

Question 2

If the earth's electric field is 100 N/C downward, what must be the charge on a 1-kg object so that it would be weightless?
 
  A)
 
  9.8 C
  B)
 
  0.22 C
  C)
 
  1.0 C
  D)
 
  -9.8  10-2 C
  E)
 
  9.8  10-2 C

[ambernicolefink]

Answer to Question 1

The specific gravity of a substance is defined as the ratio of the density of that substance to the density of water at 4.0C.

Answer to Question 2

D

[lbcchick]

Great answer, keep it coming

[mohan]

Thanks for the timely response, appreciate it