Explanation:
It is given that,
Distance between wires, d = 3.5 mm = 0.0035 m
Power of light bulb, P = 100 W
Potential difference, V = 120 V
(a) We need to find the force per unit length each wire of the cord exert on the other. It is given by :
Power, P = V × I
This gives,
(b) Since, the two wires carry equal currents in opposite directions. So, teh force is repulsive.
(c) This force is negligible.
Hence, this is the required solution.
Answer: The mass of the jet is 26,225
Explanation: Convert 250km to m =250,000
1 hour = 3600
Velocity = 69.4 m/s
a= change in v/change in t
69.4/2 = 34.7
9.10×105 / 34.7 = 26,225 KG
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Answer:
I think its 12 cm itself. Because in the question it is said that the length is same in all temperature
The answer would be "gravity" because gravity is pulling the wagon down the hill.