thank you for the help provided, i will try to answer the rest on my own.
if i have a question again, i will seek your guidance.
i personal question, which sounds better? MECHATRONICS OR NANO TECHNOLOGY?
yes i am in a denser medium, water looking to a less dense, air
i calculated and got 48.6 degrees
and i think the distance is 5.1 metres
for the first question i need to hear the guy warning me of the water balloon in order to avoid it
but then i need to know if the guy's warning can...
also i don't know how the distance to the pool (4.5) will help me find how deep i must be to find or see the total internal reflection
another thing is that i tried doing the first question and i tried using the
Speed of Sound in Air formula
v= 331+ 0.59 Tc
in the text there is a very similar question to the first one i have posted but it doesn't show you how to get it just the answer
and the second question
in the text i can only find information on the total internal reflection
the two conditions required for total internal reflection...
hello
:rolleyes: i have these questions that i don't know how or what to do :rolleyes:
:confused: Matt drops a water balloon from a balcony 15m up. As it falls, someone calls out 2.0 s after release to warn the bystanders below. If the air temperature is 20 C and the people can move...