Acontractor made a small error in laying the foundation of a building. instead of being level, the foundation was at an angle of two degrees. after the building was built, the entire structure leaned dangerously to the left and had to be torn down. what does this building demonstrate about systems in general?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

By what primary heat transfer mechanism does the sun warm the earth?

What are some important factors to consider when choosing a warm-up before your workout?