A 35-mm digital camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens
You now refocus the camera on a 15.0 cm tall flower that is 75.0 cm from the lens.
(a) In refocusing, by how much did you move the lens? Did you move it toward the film or away from it?
(b) What is the height of the flower's image on the CCD sensor?
(a) 2.79 mm, away from the film (b) 10.7 mm
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Mutations are
A) sometimes caused by radioactivity. B) important in the operation of evolution. C) Both of the above. D) None of the above. E) mostly caused by eating pizza.
For a polymer filament, the linear coefficient of thermal expansion would be expected to be _____________in the axial direction than in the transverse direction.
Fill in the blank(s) with the appropriate word(s).
____________________ made very accurate observations of the positions and movements of the planets that were later used to help develop the Rudolphine Tables
Fill in the blank(s) with correct word
Weight and g: A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass is 7.35 × 1022 kg, and G = 6.67 × 10-11 N ? m2/kg2. How much does the hammer weigh on Earth and on the Moon?
What will be an ideal response?