Answer
Metals
Explanation
Conductors are materials that allow current to flow through them. ost of these conductors are metals. the best conductors are, copper, silver, and gold. Others such as aluminium, zinc among others come after the three mentioned.
Materials such as wood and plastic are called insulators and they can not conduct current.
With this in mind we can conclude that the most common objects we can use to light the bulb are metals.
Answer:
cycling of water in and out of the atmosphere.
Explanation:
2.Chemical energy is converted to mechanical energy.
3. Chemical energy is converted to heat energy.
4. Chemical energy is converted to mechanical and kinetic energy.
the correct answer is 1. Chemical energy is converted to mechanical and heat energy.
When the boy eats apple, the chemical energy of the apple first converted in the heat energy in the process of digestion, which maintains our body temperature, than the body of the boy converts the heat energy into mechanical energy.
Therefore the correct option is 1.
Answer:
Chemical energy is converted to mechanical and heat energy.
Explanation:
A force that pulls one mass .
100 J
B.
200 J
C.
400 J
D.
600 J
Answer:
Explanation:
In physics, work is defined as
Where is the word done, is the force that move the object and is the change of the position of the object.
In this case, we have
, remember that the difference refers to the actual subtraction between the final point and the initial point of the object.
Replacing these values, we have
Therefore, the right answer is C. The work done is 400 Joules
Answer:
400 J
Explanation:
I just took the test and can confirm this.