Relate the formation of the Himalayas to plate tectonics
What will be an ideal response?
In the last 30 million years, the northward motion of the Indian plate has caused it to ram into Eurasia, with the light continental plates in collision having no way to go but up, making the roof of the world.
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A book is given a brief shove along a table top and released so that it slides a short distance and comes to rest. Galileo would say that the book stopped because
A) the ether slows it down to a stop. B) of friction. C) its natural motion is to come to rest. D) of its inertia. E) of gravity.
The combining of two nuclei to form a larger nucleus with the release of energy is __________
Fill in the blank(s) with correct word
Momentum: Three objects are moving along a straight line as shown in the figure. Taking the positive direction to be to the right, what is the total momentum of this system?
A. +106 kg ? m/s B. -106 kg ? m/s C. +14.0 kg ? m/s D. -14.0 kg ? m/s E. 0.00 kg ? m/s
The shield of a nuclear reactor is idealized by a large 25 cm thick flat plate having a thermal conductivity of 3.5 W/(m K). Radiation from the interior of the reactor penetrates the shield and there produces heat generation that decreases exponentially from a value of 187.6 kW/ m3. at the inner surface to a value of 18.76 kW/m3 at a distance of 12.5 cm from the interior surface. If the exterior surface is kept at 38°C by forced convection, determine the temperature at the inner surface of the shield. Hint: First set up the differential equation for a system in which the heat generation rate varies according to (0)e–Cx
IVEN
Large flat plate with non-uniform internal heat generation Thickness (L) = 25 cm=0.25 m Thermal conductivity (k) = 3.5 W/(m K) Exterior surface temperature (To) = 38°C Heat generation is exponential with values of
? 187.6 kW/m3 at the inner surface
? 18.76 kW/m3 at 12.5 cm from the inner surface
FIND
The inner surface temperature (Ti)
ASSUMPTIONS
One dimensional, steady state conduction The thermal conductivity is constant No heat transfer at the inner surface of the shield
SKETCH
