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.

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?