The answer is:
A. They can be formed into wires.
B.They are shiny.
D. They are good conductors
E.can be easily shaped by hammering or pounding.
The explanation:
Let's see the characteristics of the most metals:
1) the most metals can be hit by a hammer and form a thin sheets without breaking and this called malleability.
for example: Aluminium and copper
2) They can form into a very thin wires and this called ductility
for example: silvar , Aluminium and copper.
3) The metal can conduct the heat and the electricity very easy and quick, this mean that the meals are good conductor for the heat and electricity.
4)The metals like gold can be used at jewellery because it is very shiny.
5) and answer C is wrong because most metals are solid at room temperature.
Answer:
It should be option B polarization
Answer:
Vertical height of the hill, h = 20.4 meters
Explanation:
Given that,
Speed of the bicyclist, v = 20 m/s
To find,
The vertical height of the hill.
Solution,
Let h is the height of the hill. When he approaches the bottom of the hill, the loss in kinetic energy is equal to the gain in potential energy. Using the conservation of energy as,
h = 20.4 meters
Therefore, the vertical height of the hill is 20.4 meters. Hence, this is the required solution.
Answer:
ocean covers 71 percent of the earth
