Which of the following best describes the most likely internal structure of Europa?
A) thin icy crust, subsurface ocean of water, thick iron mantle, central rocky core
B) thin icy crust, subsurface ocean of water, thick rocky mantle, central iron core
C) thin icy crust, thick rocky mantle, central iron core
D) surface ocean of water, thick rocky mantle, central iron core
B
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Jupiter's moon _______________ appears to have a liquid-water ocean below its icy crust and may contain minerals as a source of raw material for chemical evolution
Fill in the blank(s) with correct word
A beam with an overhang is loaded by a uniform load of 3 kN/m over its entire length. Moment of iner- tia Iz 5 3.36 3 106 mm4 and distances to top and bottom of the beam cross section are 20 mm and 66.4 mm, respectively. It is known that reactions at A and B are 4.5 kN and 13.5 kN, respectively. The maximum bending stress in the beam is approximately:
(A) 36 MPa
(B) 67 MPa
(C) 102 MPa
(D) 119 MPa
When you simultaneously drop a light tennis ball and a heavy bowling ball, they hit the floor
A) at the same speed. B) with the same force. C) with the same momentum. D) all of the above E) none of the above
In a Young's experiment, the paths from the slits to a point on the screen differ in length causing constructive interference at the point. Which of the following path differences would cause this constructive interference?
a. 5?/2 b. 3?/4 c. 4? d. None of the above.