Question
Squids and octopuses propel themselves by expelling water. They do this by taking the water into a
cavity and then suddenly contracting the cavity, forcing the water to shoot out of an opening. A 6.50
daN squid (including the water in the cavity) that is at rest suddenly sees a dangerous predator.
(a) If this squid has 1.75 kg of water in its cavity, at what speed must it expel the water to suddenly
achieve a speed of 2.50 m/s to escape the predator? Neglect any drag effects of the surrounding
water.
(b) How much kinetic energy does the squid create for this escape maneuver?
cavity and then suddenly contracting the cavity, forcing the water to shoot out of an opening. A 6.50
daN squid (including the water in the cavity) that is at rest suddenly sees a dangerous predator.
(a) If this squid has 1.75 kg of water in its cavity, at what speed must it expel the water to suddenly
achieve a speed of 2.50 m/s to escape the predator? Neglect any drag effects of the surrounding
water.
(b) How much kinetic energy does the squid create for this escape maneuver?
Answers
Jessica
The answers are:
a)6.79 m/s
b) 55.2J
Not too sure on how to get these answers!!Please Help!
a)6.79 m/s
b) 55.2J
Not too sure on how to get these answers!!Please Help!
Ally
what is most likely explanation for why the shang had little interaction with non-chinese cultures
Damon
to use conservation of momentum you must know all masses and speeds
This :::::
" cavity and then suddenly contracting the cavity, forcing the water to shoot out of an opening. A 6.50
daN squid (including the water in the cavity) that is at rest suddenly sees a dangerous predator.
..."
Is gibberish
This :::::
" cavity and then suddenly contracting the cavity, forcing the water to shoot out of an opening. A 6.50
daN squid (including the water in the cavity) that is at rest suddenly sees a dangerous predator.
..."
Is gibberish