Please answer these with solutions, nonsense answers will be S. P.A. M reported ‼️
1.) Pacific Plate moves 2inches annually and has a mass of 4.34x10^22 kg approximately.
2.) The Rate of movement of North American Plate is 1cm per year and has a mass of 3.18x10^22kg approximately.
3.) The Eurasian plate is moving about 3cm per year. It has a mass of 2.85x10^22 kg approximately.
Because if we will mental it... Think The ball a is thrown upward even it can pull downward by the gravity ball b is the fastest because the ball b has already force to hit the ground and when the gravity pull it the force that has the ball b much be faster than its original force
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The ice where they stand on is considered to be frictionless, thus, no external force present. Their momentum is conserved in the system. There will be no change in momentum before and after the push off.
1. Boy 72 kg ? unknown
2. Girl 48 kg 6.8 m/s
Note: total initial momentum is zero and total final momentum is equal to total initial momentum.
Formula of momentum p=mv
Total initial momentum = Total final momentum
0 = p(boy) + p(girl)
0 = 72 kg × V(boy) + 48 kg × 6.8 m/s
0 - 326.4 kg. m/s = 72 kg × V(boy)
-326.4 kg.m/s / 72 kg = V(boy)
- 4.533 m/s = V(boy)
The boy moves westward at - 4.533 m/s opposite to the direction of the girl .
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