Imagine that the apparent weight of the crown in water is = 4.50n, and the actual weight is = 5.00n. is the crown made of pure (100%) gold?
the density of water is = 1.00 grams per cubic centimeter. the density of gold is = 19.32 grams per cubic centimeter.

Answer : The crown is not made of pure (100%) gold.

Explanation :

Formula used :

where,

= apparent weight of the crown in water = 4.50 N

= actual weight = 5.00 N

= density of water =

= density of crown = ?

Now put all the given values in the above formula, we get:

Density of crown < Density of gold

Thus, the crown is not made of pure (100%) gold.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )