Oly(3-hydroxybutyrate) (phb), a semicrystalline polymer that is fully biodegradable and biocompatible, is obtained from renewable resources. from a sustainability perspective, phb offers many attractive properties though it is more expensive to produce than standard plastics. the accompanying data on melting point (°c) for each of 12 specimens of the polymer using a differential scanning calorimeter appeared in an article. 180.5 181.7 180.8 181.5 182.6 181.7 181.2 182.2 182.2 180.2 181.7 180.5 compute the following. (round your answers to two decimal places.) (a) the sample range °c (b) the sample variance s2 from the definition [hint: first subtract 180 from each observation.] s2 = (c) the sample standard deviation s = (d) s2 using the shortcut method

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

step-by-step explanation:

i believe its "c" because all of the other options include a but it could be d because there is a way of financing with cash at certain places but its uncommon.

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v