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.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?

Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.