__________is microscopic solid grains in the interstellar medium
A) Main-sequence dust
B) Interstellar dust
C) Interstellar mud
D) Main-sequence mud
B
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If the AA designation of an alloy begins with a “7”, the major alloy element is _________.
Fill in the blank(s) with the appropriate word(s).
Free Fall: A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ground after 2.0 s. How high is the building, assuming negligible air resistance?
A. 20 m B. 30 m C. 50 m D. 70 m
The electric potential at the surface of a charged conductor
a. is always zero. b. is always independent of the magnitude of the charge on the surface. c. may be set equal to zero by adding an appropriate constant to the potential at all points of space. d. is always such that the potential is zero at all points inside the conductor. e. is always such that the potential is always zero within a hollow space inside the conductor.
Louis Pasteur's contribution was
What will be an ideal response?