Avery powerful vacuum cleaner has a hose 2.36 cm in diameter. with no nozzle on the hose (no change to hose area), what is the weight of the heaviest brick it can lift? the atmospheric pressure is 1.00 atm=101,300 pa. ignore the buoyancy force of the air on the brick.

The gravitational attraction between two objects will if one object acquires more mass .

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.