Diamond and graphite are minerals made of 100% carbon.
Are diamond and graphite the same mineral or different
minerals? Why?
Expert Solution & Answer
To determine
Whether diamond and graphite are the same minerals or different, and the reason for the same.
Answer to Problem 1RCC
Solution:
Diamond and graphite are the two different minerals because their atoms are arranged differently.
Explanation of Solution
Diamond and graphite are polymorphs. The two minerals that contain the same elements in the same ratio but their atoms are arranged differently are called polymorphs. Diamond and graphite are pure carbon, but they are different minerals because their atoms are arranged differently. In diamond, the carbon atoms form a tight, three-dimensional network; whereas, the carbon atoms in graphite form sheets that slip past one another easily.
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3.63 • Leaping the River II. A physics professor did daredevil
stunts in his spare time. His last stunt was an attempt to jump across
a river on a motorcycle (Fig. P3.63). The takeoff ramp was inclined at
53.0°, the river was 40.0 m wide, and the far bank was 15.0 m lower
than the top of the ramp. The river itself was 100 m below the ramp.
Ignore air resistance. (a) What should his speed have been at the top of
the ramp to have just made it to the edge of the far bank? (b) If his speed
was only half the value found in part (a), where did he land?
Figure P3.63
53.0°
100 m
40.0 m→
15.0 m
Please solve and answer the question correctly please. Thank you!!
You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down, 5.00 s after it was thrown. What is the speed of the rock just before it reaches the water 25.0 m below the point where the rock left your hand? Ignore air resistance.
Chapter 23 Solutions
Modified Mastering Physics with Pearson eText -- Standalone Access Card -- for Conceptual Integrated Science
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