Answer:
Direct current or DC electricity is the continuous movement of electrons from negative to positive through a conducting material such as a metal wire. A DC circuit is necessary to allow the current or steam of electrons to flow. In a circuit, the direction of the current is opposite the flow of electrons
Explanation: hope that helped
Answer:
166.67 N
Explanation:
Given:
Mass flow rate = 50 kg/min = 50 kg / 60 seconds = 0.833 kg/s
Initial velocity = 200 m/s
after striking the normal board the water will flow in the normal direction, thus the final velocity in the direction of the initial flow will be zero
therefore,
Force = (change in momentum)
or
Force = Initial momentum - final momentum
or
Force = 0.833 × 200 - 0.833 × 0
or
Force = 166.67 N
Answer:
point_dist = math.sqrt((math.pow(x2 - x1, 2) + math.pow(y2 - y1, 2))
Explanation:
The distance formula is the difference of the x coordinates squared, plus the difference of the y coordinates squared, all square rooted. For the general case, it appears you simply need to change how you have written the code.
point_dist = math.sqrt((math.pow(x2 - x1, 2) + math.pow(y2 - y1, 2))
Note, by moving the 2 inside of the pow function, you have provided the second argument that it is requesting.
You were close with your initial attempt, you just had a parenthesis after x1 and y1 when you should not have.
Cheers.
