I believe it is A. Electrons reside in known positions in fixed orbits around the nucleus
<span>A ball is thrown downward at 5ms from roof 10m high its velocity when it reaches the ground is 0 m/s. This is because it already dropped from the ground or x axis. So the velocity already stopped. </span>
To solve this problem it is necessary to apply the concepts of heat change and thermal efficiency.
The heat rate can be expressed under the function

Where,
m = Mass
Enthalpy at each state
Our values are given as,





From the tables of Enthalpy of Water at 200°C (Saturated liquid state)

At the same time for 80°C

Applying the equation of Heat,

Replacing,


Therefore the efficiency would be



Therefore the actual thermal efficiency of the turbine in percent is 0.0579.
Answer:
c) 2 blocks
Explanation:
Her displacement is the difference between her starting point and her ending point.
Let's say she starts at the origin, (0, 0).
First, she goes 13 blocks east: (13, 0)
Next, she goes 4 blocks north: (13, 4)
Then she goes 8 blocks west: (5, 4)
Then she goes 6 blocks south: (5, -2)
Finally, she goes 5 blocks west: (0, -2)
The magnitude of her displacement is the distance between her initial and final positions: 2 blocks.