Apump is required to lift 800 kg of water per minute from a well 14.6 m deep and eject it with a speed of 18.2 m/s..

a. how much work is done per minute in lifting the water? b. how much in giving the water the kinetic energy it has when ejected? k =? c. what must be the power output of the pump?

Aregular polygon has angkes of size 150° each.how many side has the polygon

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass