Answer:
<em>The actual dimensions of the classroom are 50 cm x 70 cm</em>
Explanation:
<u>Scaling
</u>
When we need to represent real-world dimensions into small spaces, we use scaling. Distance scaling tells us what is the equivalence between the real units and the scaled units. In this case, we are told that 10 cm is equivalent to 1 meter. As 1 meter is 100 cm, it means that the scale is 100/10=10. Thus, each centimeter in the paper is equivalent to 10 cm in the real distance.
The classroom is 5 cm x 7 centimeters. Scaling back to the real values, the classroom has measures of 50 cm x 70 cm.
Answer:
See below
Explanation:
Higher pitch mens higher frequecy of vibrations
louder means more amplitude of vibrations (stronger vibrations)
This is a tricky question I think so because the light hits the shirt and the shirt is a but transparent or its just a plain white shirt sorry if I did not answer your question in new to this ( ´ ▽ ` )ノ
What are the two sets? I only see the two answers?
To solve this problem it is necessary to apply the concepts related to pressure as a unit that measures the force applied in a specific area as well as pressure as a measurement of the density of the liquid to which it is subjected, its depth and the respective gravity.
The two definitions of pressure can be enclosed under the following equations

Where
F= Force
A = Area

Where,
Density
g = Gravity
h = Height
Our values are given as,


If we make a comparison between the lid and the tube, the diameter of the tube becomes negligible.
Matching the two previous expressions we have to

Re-arrange to find h




Therefore the height of water in the tube is 7.9cm