ǀ Plate tectonics. The earth’s crust is broken up into a series of more-or-less rigid plates that slide around due to motion of material in the mantle below. Although the speeds of these plates vary somewhat, they are typically about 5 cm/y. Assume that this rate remains constant over time. (a) If you and your neighbor live on opposite sides of a plate boundary at which one plate is moving northward at 5.0 cm/y with respect to the other plate, how far apart do your houses move in a century? (b) Los Angeles is presently 550 km south of San Francisco, but is on a plate moving northward relative to San Francisco. If the 5.0 cm/y velocity continues. how many years will it take before Los Angeles has moved up to San Francisco?
ǀ Plate tectonics. The earth’s crust is broken up into a series of more-or-less rigid plates that slide around due to motion of material in the mantle below. Although the speeds of these plates vary somewhat, they are typically about 5 cm/y. Assume that this rate remains constant over time. (a) If you and your neighbor live on opposite sides of a plate boundary at which one plate is moving northward at 5.0 cm/y with respect to the other plate, how far apart do your houses move in a century? (b) Los Angeles is presently 550 km south of San Francisco, but is on a plate moving northward relative to San Francisco. If the 5.0 cm/y velocity continues. how many years will it take before Los Angeles has moved up to San Francisco?
ǀ Plate tectonics. The earth’s crust is broken up into a series of more-or-less rigid plates that slide around due to motion of material in the mantle below. Although the speeds of these plates vary somewhat, they are typically about 5 cm/y. Assume that this rate remains constant over time. (a) If you and your neighbor live on opposite sides of a plate boundary at which one plate is moving northward at 5.0 cm/y with respect to the other plate, how far apart do your houses move in a century? (b) Los Angeles is presently 550 km south of San Francisco, but is on a plate moving northward relative to San Francisco. If the 5.0 cm/y velocity continues. how many years will it take before Los Angeles has moved up to San Francisco?
The earth's crust is broken up into a series of more-or-less rigid plates that slide around due to motion of material in the mantle below. Although the speeds of these plates vary somewhat, they are typically about 5.2 cm/ycm/y. Assume that this rate remains constant over time.
a) If you and your neighbor live on opposite sides of a plate boundary at which one plate is moving northward at 5.2 cm/ycm/y with respect to the other plate, how far apart do your houses move in a century?
Express your answer in meters
b) Los Angeles is presently 550 kmkm south of San Francisco, but is on a plate moving northward relative to San Francisco. If the 5.2 cm/ycm/y velocity continues, how many years will it take before Los Angeles has moved up to San Francisco?
Express your answer in years.
#2
Problem 8: Tectonic plates are large segments of the Earth's crust that move slowly.
Suppose that one such plate has an average speed of v= 4.4 cm/year.
What distance d, in meters, does the plate move in 1.6 seconds at this speed?
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