A solid object weighs 15.70 N in air. When it is suspended from a scale and submerged in water, the scale reads 5.30 N. Find the density of the object. (Use 1000.0 kg/m3 for the water density.) (in kg/m3) help fast

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.