Answer:
Pressure at P point is given as
Explanation:
As we know by poiseuille's equation of viscous flow of liquid through cylindrical pipe
here we know that
L = 4 cm
r = 1 mm
Q = flow rate
now we have
A reaction that requires free energy:. A. must be endothermic.. . B. is nonspontaneous.. . C. must correspond to a decrease in e
2 answers:
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Answer:
Force, F = 500 N
Explanation:
Given that,
Power expanded, P = 1000 W
Distance moved by piano, d = 10 m
Time taken, t = 5 s
To find,
The force exerted by the person
Solution,
The rate at which the work is being done is called power delivered. Its formula is given by:
W is the work done, W = F × d
On rearranging the above formula to find F as :
F = 500 N
Therefore, the force exerted on the person is 500 N. Hence, this is the required solution.
As 1 km = 1000 m = 1000,00 cm,
So, 1 cm = (1/1000,00) km
1 hour = 60 × 60 s = 3600 s
So, 1 s = (1 / 3600) hour
The light travels at a speed of .
In kilometer/hour,