A child tosses a ball directly upward. Its total time in the air is T. Its maximum height is H. What iS its height after it has been in the air a time T/4?Neglect air resistance. A. H/4 B.H/3 C. 3H/4 D. 2H/3 E.H2
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December 2022
An Eskimo is pulling a sledge across level snow. The sledge has a mass of 25 kg. The Eskimo with a horizontal force of 60 N and the constant force of friction is 20 N The acceleration of the sledge is A 0.80 ms B 0 .625 ms C 1.6...
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sameertahir0306
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December 2022
A group of interbreeding individuals belonging to a particular species and sharing a common geographic area is called a. Community b. Family c. Population d Order
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December 2022
Natural selection acts on which in turn may result in the evolution of overtime. a. Populations, individuals b. Individuals, populations c. Species, species d. Individuals, families
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December 2022
The actual remains or traces of organisms that lived in ancient geological times a. vestigial remains b. Fossils c. Fuel d. None of these
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December 2022
The streamline shape of sharks and whales, similar but not due to a common ancestor is an example of: a. Analogous traits b. Homologous traits c. Artificial selection d. Fitness