Answer:
I think it's C - sorry if I'm wrong
The atomic mass of copper is 64.93
Yes,
It is because the speed of sound in solids is very higher than speed of sound in gasses(air). As the molecules present in the solids are very close to each other and transfer disturbance easily and quickly to other molecules. In gasses molecules are farther apart and require more time to travel. Hence speed of sound in gasses are lower than in solids.
Second reason '
AS velocity = V = square root [ elastic modulus /density ]
Gasses are more compressible and hence have smaller elastic modulus so have lower speed .
I think it is called Testosterone.
Gases at pressure are released by rockets as they travel towards space. According to Newton's third law, the combustion chamber's exhaust gases push the rocket with an accelerating force known as the thrust.
<h3>Explain exactly Newton's Third Law:</h3>
According to Newton's third law, if an object A pulls on an object B, then object B must exert an equal-sized and opposite-direction force on the first thing directed in the opposite direction. This law illustrates a symmetry in nature whereby forces always occur in pairs and whereby no body can exert a force without also being subjected to one.
<h3>What are Newton's 3rd law examples?</h3>
Action and response are always equal but always move in the opposite direction, according to Newton's third law of motion. A human walking on the ground, a hammer driving a nail, a magnet attracting a paper clip, and a horse pulling a cart are all examples of Newton's third rule of motion.
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