Two Life Preservers Have Identical Volumes, One Filled with Styrofoam

question 59

Multiple Choice

Two life preservers have identical volumes, one filled with Styrofoam and the other filled with sand. When the two life preservers are worn by swimmers, one swimmer floats with part of the preserver above water, and the other swimmer sinks. In this case the buoyant force is greater on the life preserver filled with

• A)Styrofoam.
• B)sand.
• C)same for both

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Definitions:

Corpus Luteum

Hormone-secreting structure that forms from follicle cells left behind after ovulation.

Ruptured Follicle

The process during ovulation where the mature ovarian follicle tears open to release an egg into the fallopian tube.

Progesterone

Sex hormone produced by ovaries; prepares a female body for pregnancy and helps maintain a pregnancy.

Estrogens

Sex hormones secreted by ovaries; function in reproduction and cause development of female secondary sexual characteristics.