The duck at 12m/s has a greater speed than the heron which travels at 10m/s
I think you subtract to see how much of the mirror is visible if so it is 1.9 hope this helps!!!
Answer:
Explanation:
The eccentric formula for ellipse can be calculated using
e = (r_a - r_p) / (r_a + r_p)
r_a is the longest distance between the moon and its planet
r_p=0.27 r_a is the shortest distance between the moon and its planet
Then,
e = (r_a - r_p) / (r_a + r_p)
e = (r_a - 0.27 r_a) / (r_a + 0.27 r_a)
e = 0.73r_a / 1.27 r_a
e = 0.57
This is the moon orbital eccentric
Explanation:
Two sets of magnetic forces enable Maglev train to work. We know that like poles repel each other and unlike poles attract each other. The repulsion between one set of magnets lifts the train up from the tracks. The train floats or we can say levitates above the track. Another set of magnetic forces makes it move forward.
