Rocks are made of minerals, and they are formed in different ways. According to the diagram above, how are sedimentary rocks formed? A. Sand and other particles are buried, compacted, and cemented together. B. Wastes deposited by plants and animals decompose and weather. C. Molten rock cools and turns solid. D. Other rocks experience intense heat and pressure.

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_