A Particle Starts from Rest at Time T = 0

question 23

Multiple Choice

A particle starts from rest at time t = 0 and moves along the x axis.If the net force on it is proportional to t, its kinetic energy is proportional to:

• A)t
• B)t²
• C)t⁴
• D)1/t²
• E)none of the above

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Definitions:

Cross-pollination

The transfer of pollen from the anther of a flower of one plant to the stigma of a flower of another plant, promoting genetic diversity.

Pollen Grain

In seed plants, structure that is derived from a microspore and develops into a male gametophyte.

Polar Nucleus

In plants, one of the two nuclei that migrate to the center of the embryo sac and fuse with a sperm nucleus during fertilization, contributing to the endosperm's development.

Sperm Nucleus

The male genetic material contained within the head of a sperm cell that fuses with an egg cell's nucleus during fertilization.