Answer:
245.45km in a direction 21.45° west of north from city A
Explanation:
Let's place the origin of a coordinate system at city A.
The final position of the airplane is given by:
rf = ra + rb + rc where ra, rb and rc are the vectors of the relative displacements the airplane has made. If we separate this equation into its x and y coordinates:
rfX = raX+ rbX + rcX = 175*cos(30)-150*sin(20)-190 = -89.75km
rfY = raY + rbY + rcT = 175*sin(30)+150*cos(20) = 228.45km
The module of this position is:
And the angle measure from the y-axis is:
So the answer is 245.45km in a direction 21.45° west of north from city A
Answer:
Explanation:
Option C is the correct answer
Suppose a parachutist lands on a high-voltage wire and grabs the wire as she prepares to be rescued, she will not be electrocuted.
<h3>
What is Voltage?</h3>
This is referred to as the difference in electric potential between two points or the work done which is needed per unit to move a charge between two points in a circuit.
If she grabs the wire as she prepares to be rescued, she will not be electrocuted because the net electrical potential will be 0.
In a situation where the wire breaks as she holds on to it then she will be electrocuted.
Read more about Voltage here brainly.com/question/1176850
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