How big was the Virgo Cluster in size?
A.) 10^19 m.
B.) 10^30 m.
C.) 10^24 m.
D.) 10^53 m.
E.) 10^44 m.
Ans: C.) 10^24 m.
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In the BCC metal iron, the (110)-type planes are the most closely packed planes.
(a) Calculate the interplanar spacing between the (110)-type planes. (b) Draw a BCC unit cell and show the (110)-type planes and a [110] direction that is perpendicular to the (110) planes. (c) Calculate the segment lengths where the (110) planes cut the [110] direction.
Parallel Wires: Two parallel straight wires are 7.0 cm apart and 50 m long. Each one carries a 18-A current in the same direction. One wire is securely anchored, and the other is attached in the center to a movable cart. If the force needed to move the wire when it is not attached to the cart is negligible, with what magnitude force does the wire pull on the cart? (?0 = 4? × 10-7 T ? m/A)
A. 46 mN B. 37 mN C. 66 mN D. 93 mN
A(n) ______ is a computer input device that reads printed text, images, or objects and translates the results into a digital file.
A. screen capture B. scanner C. digital reader D. e-book
What is the mass of a woman who weighs 110 lb?
A) 50 kg B) 55 kg C) 73 kg D) 110 kg E) 242 kg