A thin lens of focal length 12.5 cm has a 5.0 cm tall object placed 10 cm in front of it. What is the size and orientation of the image?
A. 4.0 cm, inverted
B. 4.0 cm, upright
C. 8.9 cm, inverted
D. 8.9 cm, upright
E. 25 cm, upright
E. 25 cm, upright
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Lunar ________ are the result of ancient lava flows on the Moon
Fill in the blank(s) with correct word
In a double slit experiment, a beam of electrons strikes a pair of slits
The slits are 15 ?m apart, and the first interference maximum lies at an angle of 0.50 µrad from the center of the interference pattern. What is the momentum of the incoming electrons? (h = 6.626 × 10-34 J ? s, mel = 9.11 × 10-31 kg) A) 8.8 × 10-23 kg ? m/s B) 1.1 × 10-23 kg ? m/s C) 2.2 × 10-23 kg ? m/s D) 4.4 × 10-23 kg ? m/s E) 6.6 × 10-23 kg ? m/s
A potter's wheel is rotating at 1.00 rpm. What centripetal force is required to hold a 1.00 g lump of clay in place, 10.0 cm from the axis of rotation?
A) 1.10 × 10-6 N B) 1.20 × 10-6 N C) 1.30 × 10-6 N D) 1.40 × 10-6 N E) 1.50 × 10-6 N
When stress exceeds a rock's elastic limit, the rock
A) permanently loses its original form. B) can either break or flow. C) becomes plastic. D) can lose its original form and either break or flow.