For each problem below, please refer to the following diagram. Calculate the missing values a. The painter weighs 300 newton, the helper weighs 150 newton, the board weighs 600 newtons.. The tension in rope A is 350 newtons. What is the tension in rope A?

b. The tension in rope A is Newtons, the helper weighs 100 newton, the board weighs 1500 newtons.. The tension in rope A is 1050 newtons. What is the weight of the painter?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution