Answer:

1.A tree is an undirected graph G that satisfies any of the following equivalent conditions: G is connected and acyclic (contains no cycles). G is

acyclic, and a simple cycle is formed if any edge is added to G. G is connected, but would become disconnected if any single edge is removed from G.

2.A range of physical properties are investigated: tensile strength, ductility in tension, Young's modulus, three-point bending, and bending span. A range of commercially available wire products were tested.

3.Other examples of physical properties include color, mass, smell, boiling point, volume and temperature. Now let's talk about your car. Your car is likely made from a metal as well.

4.Unique properties of water

Water is polar. ...

Water is an excellent solvent. ...

Water has high heat capacity. ...

Water has high heat of vaporization. ...

Water has cohesive and adhesive properties. ...

Water is less dense as a solid than as a liquid.

5.The properties of air are:

Air takes up space.

Air has mass.

Air is affected by heat.

Air exerts pressure.

Air can be compressed.

Air is affected by altitude.

6.Rainbows can be full circles. However, the observer normally sees only an arc formed by illuminated droplets above the ground, and centered on a line from the sun to the observer's eye.

7.Heat is an extensive property, while temperature is an intensive property. Heat depends on mass or quantity of the substance, whereas temperature does not depend on the quantity of matter.

8.The basic properties of sound are: pitch, loudness and tone. Figure 10.2: Pitch and loudness of sound.

10.What are some properties of the sun?

Characteristics of the Sun

Mass: 1.98892 x 1030 kg.

Diameter: 1,391,000 kilometers.

Radius: 695,500 km.

Surface gravity of the Sun: 27.94 g.

Volume of the Sun: 1.412 x 1018 km3

Density of the Sun: 1.622 x 105 kg/m3

Explanation:

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