What substances existed as solid flakes within the innermost regions (within about the inner 0.3 AU) of the solar system before planets began to form?
a. none
b. only rocks and metals
c. only hydrogen compounds
d. only hydrogen and helium gases
Ans: a. none
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A. 100 kW B. 10.0 kW C. 140 kW D. 14.0 kW E. 275 kW
Convert 14°F to K
A) 263 K B) 287 K C) 163 K D) -10 K E) 474 K
Newton's Second Law in 2 Dimensions: Two forces act on a 55-kg object. One force has magnitude 65 N directed 59° clockwise from the positive x-axis, and the other has a magnitude 35 N at 32° clockwise from the positive y-axis. What is the magnitude of this object's acceleration?
A. 1.1 m/s2 B. 1.3 m/s2 C. 1.5 m/s2 D. 1.7 m/s2
The loop has now entirely left the field.
A. forward (in the +x direction). B. backward (in the -x direction). C. zero. D. some other direction (specify).