Answer:
Frequency is the correct answer.
Explanation:
When a wave go from one medium to another medium then the velocity, wavelength and Amplitude changes. But there is no change on the frequency.
Here, The string and the surroundings air are two medium , from which the wave travels.
So, the wave has same frequency in both medium.
The correct answer is Frequency.
Answer:
Cause its scalar quantity
Explanation:
since speed does not take directions into consideration, it is considered to be a scalar quantity. On the other hand, the velocity of an object does not take into account direction, thus making it a vector quantity.
Answer:
The visible light frequency is 400 THz to 700 THz, approximately. A THz is a Terahertz, which is a unit of frequency equal to one trillion Hertz.

The net force acting on the block is ~


So, the Answer in the boxes will be ~

The flat sheet of paper has more surface area than the crumpled ball