Answer:
12.245m3
Explanation:
The electric energy is created by The potential energy substended by the specific volume of water in dam.
Electric energy is calculated as
E= Q× V
E is Energy, Q is charge and V is Voltage
Note that this energy has been given and is 60Joules
From conservation of energy it means;
M× g×h = 60
Where M is the mass of water.
g is acceleration of free fall due to gravity which is 9.8m/S2
h is the height of water flow.
From change of subject of formula for M; we have:
M = 60/ g × h
= 60/ 9.8 × 0.5
= 12.245kg
Now how much water required means the volume of water;
Note density = mass/volume
Therefore volume = mass/density
=12.245/1= 12.245m3
Note the density of water is 1kg/m3
As we know that in empty space we don’t have any forces to effect on our ball so ΣF=0 and based on first Newtons law it keeps going with constant velocity!
Answer:
Sonography-A process in which machine generate a high frequency sound waves that bounch back or reflected from the surface creating echos that are then processed into images .
Ultrasound scans are used to detect problems in the liver, heart, kidney, or abdomen.
Explanation:
