An object is attached to a vertical spring and slowly lowered to its equilibrium position. this stretches the spring by an amount d. if the same object is attached to the same vertical spring but permitted to fall instead, through what maximum distance does it stretch the spring?

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

The energy equivalent of the rest mass of an electron is