Which of the following are not part of the stages in cognitive development? a. sensorimotor b. concrete c. formal d. semi-formal e. formal operational

In a system, when potential energy decreases, then entropy also decreases. true false

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.