If you place a pipe over the end of a wrench when trying to rotate a stubborn bolt, effectively making the wrench handle twice as long, you'll multiply the torque by
A) two.
B) four.
C) eight.
Answer: A
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For the triangular micro heat pipe arrangement shown in Figure 9-41, estimate the permeability of the wick.
From the center outward, the correct order is
A) liquid iron inner core, solid nickel outer core, rocky mantle, silicate crust. B) solid metallic inner core, molten metal outer core, silicate mantle and crust. C) solid metal core, molten metal hydrosphere, rocky lithosphere, gases in atmosphere. D) solid rock core, liquid metal mantle, solid rock crust. E) molten metal hydrosphere, molten rock lithosphere, solid silicate crust.
We expect to directly detect gravitational waves in the near future
Indicate whether the statement is true or false
What is the point where the Earth is furthest away from the Sun?
A. aphelion B. solstice C. perigee D. full moon. E. perihelion