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Physics, 22.06.2019 15:00
Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of
Answers: 1
Physics, 23.06.2019 06:40
12. ritu obtained a distinct image of a distant tree on the screen with the of a concave mirror.to find the focal length of the mirror she has to measure the distance between: (a) mirror and the tree. (b) screen and the tree.(c) mirror and the screen. (d) mirror and tree as well as between screen and the tree.
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Physics, 23.06.2019 20:30
The volumes of a sample of lead and a sample of platinum are the same: 2 cm3. the density of lead is 11.3 g/cm3 and the density of platinum is 21.5 g/cm3. which is an accurate description of their relative masses? a. the masses of the lead and platinum samples are the same. b. the mass of the lead sample is greater than the mass of the platinum sample. c. the mass of the platinum sample is greater than the mass of the lead sample.
Answers: 1
Physics, 23.06.2019 23:10
The signboard truss is designed to support a horizontal wind load of 735 lb. a separate analysis shows that 5/8 of this force is transmitted to the center connection at c and the rest is equally divided between d and b. calculate the forces in members be and bc. the forces are positive if in tension, negative if in compression.
Answers: 2
At which position, a or b, is the potential energy of the
swing the greatest?
as the sw...
swing the greatest?
as the sw...
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