Answer:
Gold is more dense.
Gold sinks faster than lead. That's why gold is found in the bottom of a gold pan or river.
A barometer is used to measure air pressure!
Answer:

Explanation:
From the question we are told that:
Height of window 
Height of window off the ground 
Time to fall and drop
Generally the Newton's equation motion is mathematically given by

Where



Generally the Newton's equation motion is mathematically given by

Where





Therefore the ball’s initial speed
