Why do seasonal and night and day cycles occur

He Earth spins, or rotates, on its axis once a day. This is the cause of the day—night cycle on Earth. ... It is the tilt that causes seasonal differences in the length of night and daylight— longer nights in winter and longer days in summer.

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Sound energy is produced when an object vibrates. examples are 1- a balloon popping2-a whistle3- a waterfall