Match the definition with the correct term: resistance to flow.

friction

gravity

resistance

viscosity

match the definition with the correct term: igneous rock formations created when magma does not reach earth’s surface, but cools and solidifies inside the crust.

hot spot

magma

volcanism

pluton

match the definition with the correct term: funnel-shaped pit at the top of a volcanic vent.

fissure

crater

rift

trench

match the definition with the correct term: type of coastline that forms when land rises or sea level falls.

lagoon

estuary

barrier island

emergent

match the definition with the correct term: crack through which lava flows to earth’s surface.

fissure

trench

vent

rift

Na food processing facility, a spherical container of inner radius r1 5 40 cm, outer radius r2 5 41 cm, and ther- mal conductivity k 5 1.5 w/m · k is used to store hot water and to keep it at 100°c at all times. to accomplish this, the outer surface of the container is wrapped with a 800-w electric strip heater and then insulated. the temperature of the inner surface of the container is observed to be nearly 120°c at all times. as- suming 10 percent of the heat generated in the heater is lost through the insulation, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the container, (b) obtain a relation for the variation of temperature in the container material by solving the differential equation, and (c) evaluate the outer surface tempera- ture of the container. also determine how much water at 100°c this tank can supply steadily if the cold water enters at 20°c.

*drag each tile to the correct location in the sequence* the table shows chronological events in the life of our sun, a medium-sized star. place the missing events into the correct rows of the table.

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?