An elevator does 1000 J of work in elevating it one floor in 20 s. The power used by the elevator is
A. 20 W
B. 100 W
C. 50 W
D. 1000 W
Answer: C
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The earliest permanent __________ colony in North America, Jamestown, was founded in 1607 in what became Virginia.
-Canadian -French -Spanish -American -British
What class is comprised of nautiluses, octopuses, and squid?
a. Cephalopoda b. Bivalia c. Gastropoda d. Mollusca
If the mantle transmits S-waves, then how can it behave like a liquid, as implied by the principle of
isostasy? What will be an ideal response?
In the state of washington, the western portion of the state receives far more rainfall than the eastern portion of the state. What accounts for this stark contrast?
A) The western portion of the state sees a great deal of frontal lifting, while the eastern portion is under a high pressure cell. B) The western portion of the state experiences orographic precipitation, while the eastern portion is in the rain shadow. C) The western portion of the state has much more moderate temperatures due to the maritime effect and, therefore, experiences convectional uplift, while the eastern portion is governed by continentality. D) The western portion of the state is under the ITCZ during the summer and experiences convergent uplift, while the eastern portion is under the Azores High and experiences subsiding air. E) The western portion of the state experiences year-round convective rainstorms, whereas the eastern portion does not.