It is important to note, that the 2nd Law of thermodynamics plays no fundamental role in answering this question; we need a heat sink because the entropy is a state function, and at the end of the reversible process (which is visualized through the Carnot cycle diagram relevant for this problem), the entropy value of the system must return to the value it had originally.

6 0

4 years ago

A 68 kg person runs off a dock at 2.79 m/s and lands on a stationary 131 kg boat. What is their joint velocity afterward?

kolbaska11 [484]

P=mv
pi =pf
(68x2.79)+(131x0) = 199v
v= 0.95 m/s

4 0

3 years ago

In the ballistic pendulum experiment (A.K.A conservation of momentum & energy), the velocity of the projectile was measured

Fed [463]

Answer: The combined velocity = 0.413m/a

Maximum angle Ø = 54.7

Explanation: Please find the attached files for the solution