A30 cm3 chunk of platinum weighs 6.3 n. it is carefully submerged in a tub of molasses. one cm3 of molasses weighs 0.013 n.
a. what is the weight of the molasses displaced by the platinum?
b. will the platinum sink or float in the molasses?

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.