Ryan drives for 180 km from Town P to Town Q. The average speed of Ryan is
60 km/h. Ryan took 45 minutes less for the return trip from Town Q to Town P.
Calculate the average speed for the return trip of Ryan from Town Q to Town P.

i believe the answer is 68cm

step-by-step explanation:

i just took 34 x 2 because the space between v and y is the same as y to k.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.

cant

step-by-step explanation: there is no picture