The diagram below shows the path of a student on a sled starting from rest at
point W.
The st...
Chemistry, 07.09.2020 02:01 lemonsalt9378
The diagram below shows the path of a student on a sled starting from rest at
point W.
The student slides down a frictionless, snow-cwered hill past point Z which is at
ground level.
Which of the following statements best describes the energy of the student and
sled from point W to point Z?
a) The total energy at point W is less than at point 2.
b) The total energy at point W is greater than at point 2.
c) The potential energy at point W becomes all kinetic energy at point 2.
d) The kinetic energy at point W becomes all potential energy at point 2
Answers: 3
Chemistry, 21.06.2019 17:10
For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above
Answers: 1
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