Answer: 219,344.5 j
Explanation:
from the question we have the following parameters
mass of barge (m) = 5 x 10^4 kg
angle of ropes (θ) = 45 degrees
force by each mule (F1) = 1.10 kN = 1100 N
force by each mule (F2) = 1.10 kN = 1100 N
distance (s) = 141 m
work done by the mules = force x cos θ x distance
since we are calculating the force of both mules we have to both mules before we can use in the equation
force = 1100 + 1100 = 2200 N
work done = 2200 x cos (45) x 141
work done = 219,344.5 j
Answer:
The water acts like a lubricant therefore has a smooth motion over the ice.
Sample:
As soon as the lightning is seen, sound travels in the air for several kilometers until it eventually reaches the observer.
Answer:
Thumb points in the same direction as the current flow.
Explanation:
In flemmings right hand rule, the right thumb is to indicate the velocity and thus points in the direction of the current flow while the index finger points in the direction of the magnetic field indicated by B, while the middle finger will point in the direction of the the magnetic force that is produced which is indicated by F.
