A 1000-Kg Space Probe Is Motionless in Space

question 57

Multiple Choice

A 1000-kg space probe is motionless in space.To start moving, its main engine is fired for 5 s during which time it ejects exhaust gases at 5000 m/s.At the end of this process it is moving at 20 m/s.The approximate mass of the ejected gas is:

• A)0.8 kg
• B)4 kg
• C)5 kg
• D)20 kg
• E)25 kg

---

Definitions:

Lumbar Vertebrae

The five vertebrae situated between the thoracic vertebrae and sacral spine, forming part of the lower back and supporting much of the body's weight.

Anatomical Variation

Anatomical variation refers to the natural differences in the shape, size, and structure of a body part among different individuals.

Right Iliac Region

An area of the abdomen located in the lower right part, containing parts of the small and large intestines, and for some people, the appendix.

Right-Lower Quadrant

An area of the abdomen that contains parts of the small and large intestines, right ovary and fallopian tube in women, and the appendix.