Consider a moving object whose position x is plotted as a function of the timet. the object moved in different ways during thetime intervals denoted i, ii and iii on thefigure. during these three intervals, when was the object’s speedhighest? do not confuse the speed with the velocity.

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 of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

What is the rate of change in a objects position?