a stone of mass 50g is placed in a measuring cylinder which contains some water: the reading of the water level increases from 30cm cubed to 40cm cubed as shown. what is the density of the stone?

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db