The rigth answer is D.
The wavefront or wavefront is an equal phase surface of a wave, i.e., these points have the same travel time from the source. The concept is used to describe the propagation of waves such as sound or electromagnetic radiation (light, radio waves, etc.). In a homogeneous and isotropic medium, in which the waves propagate without deformation, two types of particular waves are distinguished according to whether the wavefronts are spheres (spherical wave) or planes (plane wave).
Answer:
The cosmic microwave background radiation.
This is completely consistent with a fireball event in which the radiation field was in thermal equilibrium, and is perhaps the most convincing evidence for the Big Bang.
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Answer:
by playing free fire and booth you can prapt
The answer is to <span>appoint committee members.
A sub-committee is a little gathering of individuals relegated to center around a specific assignment or region, for example, fund or staff. A sub-council, for the most part, makes suggestions to the Management Committee for choice. In any case, any choices made by such gatherings remain the obligation of the entire Management Committee.
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