Answer:
constant horizontal force developed in the coupling C = 11.25KN
the friction force developed between the tires of the truck and the road during this time is 33.75KN
Explanation:
See attached file
Answer:
Explanation:
Apply a known AC voltage to the primary coil. Call it V₁
Measure the resultant voltage on the secondary coil. Call it V₂
If N₁ is the number of turns on the primary coil
and N₂ is the number of turns on the secondary coil
N₂ / N₁ = V₂ / V₁
N₂ = N₁V₂ / V₁
Power is the RATE of generating, moving, or using energy. Its unit is the WATT .
Because the mass of the chairs is so small, if they didn't have any friction or any other force against them they may move if given enough time, but since their mass is so low its nothing compared to the gravity of planets