Answer:
The magnitude of the large object's momentum change is 3 kilogram-meters per second.
Explanation:
Under the assumption that no external forces are exerted on both the small object and the big object, whose situation is described by the Principle of Momentum Conservation:
(1)
Where:
, 
- Initial and final momemtums of the small object, measured in kilogram-meters per second.
, 
- Initial and final momentums of the big object, measured in kilogram-meters per second.
If we know that 
, 
and 
, then the final momentum of the big object is:
The magnitude of the large object's momentum change is:
The magnitude of the large object's momentum change is 3 kilogram-meters per second.
∆S>_closed integral of dQ/T
There are many equations for different situations of entropy but this is a general one
S^2=3^2+4^2
S^2=9+16
S^2=25
S=√25
S=5m
Answer:
9.07 x 10^-3 N/C
Explanation:
The mobility of electrons is defined as the ratio of drift velocity to the applied electric field.
Vd = 4.08 x 10^-5 m/s
Mobility = 4.5 x 10^-3 m/s
Let the electric field is E.
Mobility = Vd / E
E = Vd / mobility
E = 4.08 x 10^-5 / (4.5 x 10^-3)
E = 9.07 x 10^-3 N/C
