A 4.0-cm-tall object is placed 50.0 cm from a diverging lens having a focal length of magnitude 25.0 cm. What is the nature and location of the image?
A) a real image, 4.0 cm tall, 20 cm other side of the object
B) a virtual image, 4.0 cm tall, 20 cm other side of the object
C) a virtual image, 2.0 cm tall, 10 cm other side of the object
D) a virtual image, 1.3 cm tall, 16.7 cm same side as the object
E) a real image, 1.3 cm tall, 16.7 cm same side as the object
D
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Exclusion Principle: The only valid electron state and shell designation among the following is
A. 1p, K (n = 1) shell. B. 2s, K (n = 1) shell. C. 1s, L (n = 2) shell. D. 2p, L (n = 2) shell. E. 3f, M (n = 3) shell.
Structure 1 with member BC of length L/2 has force P1 applied at joint C. Structure 2 with member BC of length L has force P2 applied at C. Both structures have constant flexural rigidity EI. If the ratio of the applied forces P1/P2 5 5/2, the ratio of the joint B reactions RB1/RB2 is approximately:
(A) 1
(B) 5/4
(C) 3/2
(D) 2
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Polypropylene forms from the monomer CH3CH=CH2. Show the structure of the polymer, in the usual “bracket” format