The very first scientist was galileo and was the very first person to know the speed of light
Because it tends to be hotter inside therefore when the cold air hits the inside of the glass, the cold glass makes it condense however outside its cold therefore it does condense on the outside of the window
Down to the left, down the the right, criss cross!
The stretch of the spring is

The constant of the spring is k=15 N/m, so we can find the force produced by the weight by using Hook's law: