How long will your trip take (in hours) if you travel 350 km at an average speed of 80 km/hr

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

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 = ?

Explain what will happen if decomposers were apsent from a forest ecoysystem.