The mass is conserved, so it stays the same, 450g
The question is incomplete, the complete question is;
Which statement describes a difference between electromagnetic and mechanical waves?
A. Mechanical waves cannot be longitudinal, but electromagnetic waves can.
B. Electromagnetic waves cannot move particles, but mechanical waves can.
C. Electromagnetic waves do not require a medium, but mechanical waves do.
D. Mechanical waves do not transfer energy, but electromagnetic waves do.
Answer:
Electromagnetic waves do not require a medium, but mechanical waves do.
Explanation:
A wave is defined as a disturbance along a medium which transfers energy. Waves may be classified as mechanical waves or electromagnetic waves based on their medium of propagation.
A mechanical wave requires a material medium for propagation. An example of a mechanical wave is sound waves. Sound waves are propagated in air.
Electromagnetic waves do not require a material medium for propagation. They can travel through space. An example of electromagnetic waves is light waves.
Answer:
acetyl CoA
Explanation:
The starting molecule for the krebs cycle is acetyl CoA.
<span>1.)Cathode 2.)Atom
For the first part, the cathode is the basically like the negative side or terminal. On batteries (cylindrical cells like the ones you get out of the store for your TV remotes or wireless computer mouse) usually have the cathode on the bottom.
The atom is known as the smallest physical form of any object (other than protons, neutrons, and electrons).</span>
