A 004-Kg Ball Is Thrown from the Top of a 30-M

question 38

Multiple Choice

A 0.04-kg ball is thrown from the top of a 30-m tall building (point A) at an unknown angle above the horizontal. As shown in the figure, the ball attains a maximum height of 10 m above the top of the building before striking the ground at point B. If air resistance is negligible, what is the value of the kinetic energy of the ball at B minus the kinetic energy of the ball at A (KB - KA) ?

• A)12 J
• B)(-12
• C)20 J
• D)(-20
• E)32 J

Distinguish between metabolic, genetic, and environmental factors influencing weight and eating disorders.

Gain insight into the physiological effects of dieting and how the body responds to weight loss.

Appreciate the complexity of factors contributing to obesity, including set point theory and metabolic rates.

Understand the importance of healthy eating habits and the challenges in changing dietary behaviors.

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Definitions:

Dominant Alleles

Dominant alleles are versions of genes that produce a dominant trait which will express itself in the phenotype, even when only one copy is present.

Monozygotic Twins

Identical twins that originate from a single fertilized egg, splitting and developing into two embryos.

Dizygotic Twins

Also known as fraternal twins, are two siblings born at the same time as a result of two different eggs being fertilized by two different sperm cells, sharing 50% of their DNA.

Zygote

The initial cell formed when a sperm fertilizes an egg, representing the earliest stage of embryonic development.