Awooden raft has a mass of 50 kg. when empty it floats in water (density 1000 kg/m3) with 69% of its volume submerged. what mass of sand can be put on the raft without it sinking?

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope