Answer:
humans and whales are both mammals
humans and whales can breathe air
Force of gravity = Mass x Gravitational force
Fg=mg
Fg = (5.7)(9.8)
Fg= 55.86 N
Answer:When the length of a string is changed, it will vibrate with a different frequency.Shorter strings have higher frequency and therefore higher pitch.
Energy cannot be created nor be destroyed
I got 35 lbs because your doubling the support