When the wire is twice as long. Also when the cross sectional area is halved
The answer is <span>d. the sun</span>
Answer:
Sound waves have a low speed of 330 m/s
Sound waves are mechanical waves
Electromagnetic waves have a greater speed of 3.0×10^8 m/s
Electromagnetic waves are due to disturbance of electromagnetic objects.
Answer:
B, the number of protons.
Explanation:
It is the number of protons found in the nucleus of the atom.