Pangaea; <span>the Greek word "pan" means "all" and Gaea or Gaia (or Ge) was the Greek name of the divine personification of the Earth. </span>
The vertical component is given by the sin of the angle. So this is 20*sin(53)=15.97m/s
The right answer for the question that is being asked and shown above is that: "d. As the distance from the Earth increases, the sound wave intensity also decreases due to the lessening density." This the <span>statement that is untrue in regard to sound traveling in air</span>
Since distance is a scalar and not a vector, the total distance traveled is the sum of all the distances covered throughout the journey.
In Physics, we have two categories of quantities;
The difference between vectors and scalars is that vectors has direction but scalars do not have direction. Both quantities posses magnitude.
The total distance covered can be obtained algebraically since distance is a scalar.
Hence, total distance covered = 2 cm + 6cm + 5 cm = 13 cm
Learn more: brainly.com/question/14093917
Answer:
Wave 1 and Wave 2.
Explanation:
We know that the general equation of a wave is given by :
or
We know that the speed of a wave is given by :
Where
= angular speed
k = propagation constant
Wave 1.
Wave 2.
Wave 3.
Wave 4.
It is clear that wave 1 and 2 have the same speed i.e. 7 m/s. Hence, this is the required solution.
