In your own words explain the importance of the cycles to an ecosystem and how the cycles of matter differ from the flow of energy in an ecosystem. BEST ANSWER GETS MARKED BRAINLIEST

With i really need the correct answer!

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?

The force it would take to accelerate an 900-kg car at the rate of 6m/s2