$($e$)(19-3)**\frac{2+2}{4}$

$(4$ points$)$ Consider the following C$++$ program. Suppose when the program is run, the user enters This

is my first $C^{++}$program. when prompted to enter a string. Trace the code and determine what values will

be stored in the variables myString$1,$ myChar$1,$ myChar$2,$ and myString $2$ when the program hits the

return $0$ ; statement, i$.$e$.,$ before it finishes executing.

#include $<mi\; id="EditorElement\_52420">(</mi><mn\; id="EditorElement\_52421">5</mn>$ pts$)$ Name your source code file hw$2-1.$cpp$.$ Sound travels through air as a result of collisions be$-$

tween the molecules in the air. The temp$-$erature of the air affects the velocity of the molecules, which

in turn affects the velocity of sound. The velocity of sound in dry air can be approximated by the formula:

Velocity $=331\mathrm{.}3+0\mathrm{.}61Tc$

Where Tc is the temperature of the air in degrees Celsius and the unit for velocity is meters$/$second$.$ For

this exercise, write a complete $C++$ program which displays a prompt requesting the user to input the air

temperature in Celsius, calculates the velocity of sound at that temperature, and finally outputs the result.

Write your program in a source code file named hw$2-1.$cpp and make the output of your program match

the output shown below in the sample runs, where user input is in bold. Note that the output temper$-$

ature and velocity are to be output with two digits following the decimal point.

Sample Run $1$

Enter Celsius temperature: $0$

At $0\mathrm{.}00$ degrees Celsius the velocity of sound is $331\mathrm{.}30\frac{m}{s}.$

Sample Run $2$

Enter Celsius temperature: $37\mathrm{.}4$

At $37\mathrm{.}40$ degrees Celsius the velocity of sound is $354\mathrm{.}11\frac{m}{s}.$

Sample Run $3$

Enter Celsius temperature: $-140\mathrm{.}11$

At $-140\mathrm{.}11$ degrees Celsius the velocity of sound is $245\mathrm{.}83\frac{m}{s}.$