Answer:
Vertical motion is the movement of an object in a straight line.
When an object is thrown up, it always comes down, as it is affected by the acceleration due to gravity. This is called as vertical velocity.
Current can flow when the switch is closed
Answer:
Option B
0.36 atm
Explanation:
Pt= P1+P2+P3
where Pt is the total pressure, P1, P2, P3 are pressure for respective gases
Substituting 0.9 atm for Pt, 0.26 for P1 and 0.28 for P2 then
0.9 at= 0.26 atm + 0.28 atm + P3
P3= 0.9-0.26-0.28= 0.36 atm
Therefore, the partial pressure of ammonia is 0.36 atm
I assume here that the engine operates following a Carnot cycle, which achieves the maximum possible efficiency.
Under this assumption, the efficiency of the engine (so, the efficiency of the Carnot cycle) is given by
where
is the cold temperature
is the hot temperature
For the engine in our problem, the cold temperature is 313 K while the hot temperature is 425 K, so the effiency of the engine is
Answer:
c. As the thread is stretched, the coating thins and its resistance increases; as the thread is relaxed, the coating returns nearly to its original state.
Explanation:
This is in line with the result as shown in the data.
Stretching causes the coating to thin which in turn increases the resistance of the thread (conduction drops) releasing it backs returns the thread to nearly its initial values, but due to the strain already in the thread it does not return to its original values.