A14 cm diameter pump at 1200 rpm has a flow rate of 1.5 m3/min and requires 2.4 kw at its best efficiency point (bep). the pump is scaled to 8 cm diameter to provide a flow rate of 0.6 m3/min at bep. determine the rotation speed and power required if the new pump is operating under similar conditions. neglect any viscous scaling effects. (select 2573 rpm)

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

truck y has a greater velocity than truck x.

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.