Nut 10v which of the following has the highest relative protein requirement expressed in grams per kg body weight per day (g/kg/day)? a) a 10-month old child weighing 8 kg b) an adult man weighing 70 kg c) a teenager weighing 40 kg d) an adult pregnant woman weighing 68 kg

Two red blood cells each have a mass of 9.0 multiply.gif 10-14 kg and carry a negative charge spread uniformly over their surfaces. the repulsion arising from the excess charge prevents the cells from clumping together. one cell carries −2.50 pc of charge and the other −3.10 pc, and each cell can be modeled as a sphere 7.5 μm in diameter. (a) what speed would they need when very far away from each other to get close enough to just touch? assume that there is no viscous drag from any of the surrounding liquid. answer is: 321 m/s how do i find this (b) what is the maximum acceleration of the cells in part (a)? answer is: 1.38e+10 m/s2 how did they find this answer

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Avoltaic cell converts chemical energy to