An underground tank with a capacity of 1700L (1.70m3 ) is completely filled with ethanol that has an initial temperature of 19.5?C. After the ethanol has cooled off to the temperature of the tank and ground, which is 10.5?C, how much air space will there be above the ethanol in the tank? (Coefficient of volume expansion of ethanol is 75*10^-5°C

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

Could someone me find the answer to this problem.