You step on a scale in the bathroom and it reads 220 lbs (convert to Newtons!). What is your apparent weight when you step on a scale in an elevator which is accelerating upward 3 m/s/s? 980 Newtons
820 Newtons
680 Newtons
1160 Newtons
1280 Newtons

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

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 %.

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)