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.
Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such plate has an average speed of 9.9 cm/year.
(a) What distance does it move in 1 s at this speed?
2.88
m
(b) What is its speed in kilometers per million years?
km/million years
Elsa?! Bida-bida. In Arendelle, Queen Elsa loves to show magic tricks to the kids and so, sje begins her show by standing on top of Olaf, a snowman that quickly
melts the moment she jumps away from it. Olaf stands 1.63 [m] tall. If Elsa jumps directly upward from Olaf's head and takes 1.94 [s] to rwach a maximum
height of 5.37 [m] from where Olaf's head was, how long will it take her to reach the ground from the moment she jumps off Olaf's head?
O 2.40 [s]
O 3.14 [s]
O 1.20 [s]
O 0.74 [s]
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