Answer:
D.amplifying sound vibrations from the eardrum
this is correct
Plugging in for the Earth's mass and for G, we have 11.2 km/s for the escape velocity for an object launched from the Earth's surface. This is about 25,000 miles per hour
Answer:
%
Explanation:
We have given cooler temperature that is 
= 6°C =273+6=279 K
And the warm temperature of water that is 
The maximum possible efficiency is given by 
So maximum efficiency 
%
The correct answer is C) the focus
Answer:
Find a stick sutible enough (and strong).
add a fishing string or a strong piese of plastic string that will hold
put on a hook or use a paper pin and bend it into a hook
attach hook to string and put a small stick on or anything that will float on the water to act as a bobber
Explanation:
