The Mass of a Visual Binary Pair of Stars Can

question 60

Multiple Choice

The mass of a visual binary pair of stars can be obtained from

• A)the time in years for them to orbit one another.
• B)the size of their orbit.
• C)their apparent magnitudes.
• D)both the time in years for them to orbit one another and the size of their orbit.

---

Definitions:

Hydrotherapy

The therapeutic use of water to treat physical problems.

Manual Traction

A therapeutic method where a practitioner applies a pulling force to parts of the body to reduce pain and increase mobility.

Electrical Stimulation

A therapeutic procedure that uses electric current to stimulate nerves or muscles, promoting healing and relieving pain.

Active Resistance Exercises

physical exercises that involve working against an external resistance, improving strength and endurance.