Answer:
481 m
Explanation:
To fall 235 m, the time required is
t = √(2H/g)
t= √(2
235/9.8)
t=6.92 seconds.
The supplies will travel forward
6.92
69.4 ≈ 481 m
Therefore, the goods must be dropped 481 m in advance of the recipients.
Answer:
black will be hotter because black paint absorbs light and white reflects it.
The colors that you see on the CD are created by white light reflecting from ridges in the metal. When light reflects off or passes through something with many small ridges or scratches, you often get rainbow colors and interesting patterns. They are called interference patterns.