What does an unconformity in a sequence of rock layers reveal about geologic history? a. An organism went extinct during that time

b. a layer of rock might have eroded causing a gap in the record

c. the layers of rock cover hundreds of square miles

d. the new rock layers have been deposited very quickly

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )

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 = ?