In order to make a stable dendrimer dispersion in a phosphate buffered saline (pbs) solution, 10% of drug loaded dendrimers are added into the pbs solution in a glass vial. if the diameter of a dendrimer is 4.8 nm, compute the number of dendrimers present in each cm3. densities of the dendrimer and pbs solution are 1.28 and 1.07 g/cm3, respectively.

Which of the following represents a virtual image?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Find v1, the speed of the fluid in the left end of the main pipe. express your answer in terms of h1, h2, g, and either a1 and a2 or γ, which is equal to a1a2.