An image is 4.0 cm behind a concave mirror with focal length 5.0 cm. Where is the object?
A) 2.2 cm in front of the mirror
B) 2.2 cm behind the mirror
C) 9.0 cm in front of the mirror
D) 1.0 cm behind the mirror
E) 20 cm behind the mirror
A
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During which step in the above figure would you consider the size limits that exist for your website?
A. Step 3 B. Step 4 C. Step 5 D. Step 6
Earth's rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star
Fill in the blank(s) with correct word
Nuclear Reactions: A proton strikes an oxygen-18 nucleus, producing fluorine-18 and another particle X. What is the other particle X?
A. neutron B. positron C. alpha particle D. electron E. gamma ray
Each pattern shown below would appear on a screen when monochromatic light of wavelength ? first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case does the slit have the greatest width?
a.
b.
c.
