Physics, 12.03.2021 23:50, jayjinks976
Which of the following is not a change that occurred to organisms over time in the fossil record?
A. Decrease in in the number of species
B. Greater complexity
C. Increase in size
D. More diversity
Answers: 2
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What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?
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Physics, 23.06.2019 00:10, 2002boo13
Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.
Answers: 2
Which of the following is not a change that occurred to organisms over time in the fossil record?
A...
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