The proof that the earth is rotating is the happens of night and day also the seasons, eg. winter, summer, autumn.
Correct me if I’m wrong but I think it’s C
Answer:
widow
Explanation:
F = ma
F = (6kg) (3.5m/s2)
F = 21 N
The true option is a) they form a 90 degree angle.
Pythagorean theorem is valid for right triangles, which is what you can form when the two vectors have a 90 degree angle.
Regarding the other options:
b) They are equal in magnitude: this is not a condition because Pythagoream theorem is valid for any magnitude as long as the angle is 90°C.
c) They have the sam directions: false, because if the two vectors have the same directions the magnitud is the sum of the two magnitudes.
d) They are parallel: false for a similar reason that c) taking into account if they have the same direction or are opposed. .