A Spherical Shell Has Inner Radius R₁, Outer Radius R₂

question 15

Multiple Choice

A spherical shell has inner radius R₁, outer radius R₂, and mass M, distributed uniformly throughout the shell. The magnitude of the gravitational force exerted on the shell by a point particle of mass m, located a distance d from the center, outside the inner radius and inside the outer radius, is:

• A) 0
• B) GMm/d²

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Definitions:

Dietary Sodium

The amount of sodium consumed in the diet, often monitored for its effects on blood pressure and heart health.

Oral Contraceptives

Medications taken by mouth to prevent pregnancy, containing hormones that inhibit ovulation.

Kegel Exercises

Pelvic floor exercises aimed at strengthening the muscles under the uterus, bladder, and bowel (large intestine).

Perineal Exercises

Exercises aimed at strengthening the muscles of the pelvic floor, often recommended to improve bladder control and sexual function.