a) The student hypothesizes that a greater fraction of kinetic energy is lost from the system during the collision when the spee
1 answer:
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Explanation:
We assume kinetic and potential energy changes are negligible and there is no work interactions.
a) Taking tank as a system, The energy balance can be define as
The mass balance could be written as
The final pressure in the tank could be defined as following
from standard steam table we know at
b)
From steam table at
initial mass in the tank could be define as
Final mass in the tank could be define as
The amount of steam that has entered the tank
c)
The internal energy in final state could be defined as following
The heat transfer could be defined as following
You will have to use this formula:
Final Velocity (V) = 4m/s
Initial Velocity (Vo) = 8m/s
Acceleration (a) = ? m/s^2
Time (t) = 2 secs
Then:
-> 4 = 8 + a x 2
-> 4 - 8 = 2a
-> -4 = 2a
-> a = -4/2
-> a = -2 m/s^2
Ps: It's value is negative because the she was in retrograde motion.
Answer: Her acceleration is -2 m/s^2.
Final Velocity (V) = 4m/s
Initial Velocity (Vo) = 8m/s
Acceleration (a) = ? m/s^2
Time (t) = 2 secs
Then:
-> 4 = 8 + a x 2
-> 4 - 8 = 2a
-> -4 = 2a
-> a = -4/2
-> a = -2 m/s^2
Ps: It's value is negative because the she was in retrograde motion.
Answer: Her acceleration is -2 m/s^2.