A 50-G Particle Moving 60 M/s Collides with a 2

question 22

Multiple Choice

A 5.0-g particle moving 60 m/s collides with a 2.0-g particle initially at rest. After the collision each of the particles has a velocity that is directed 30° from the original direction of motion of the 5.0-g particle. What is the speed of the 2.0-g particle after the collision?

• A) 72 m/s
• B) 87 m/s
• C) 79 m/s
• D) 94 m/s
• E) 67 m/s

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Definitions:

Incomplete Dominance

A genetic phenomenon where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes, indicating a blend of the parental traits.

Dominant Allele

An allele that expresses its phenotypic effect even when heterozygous with a recessive allele, masking the effect of the recessive allele in heterozygotes.

Recessive Allele

A type of allele that produces its characteristic phenotype only when its paired allele is identical.

Karyotype

Display of chromosomes arranged by pairs.