Concept explainers
(a)
Interpretation:
Calculate the force exerting on the cover before they were removed. Explain what happens when the last bolt is removed. Justify your decision.Calculate the initial acceleration of the cover.
Concept introduction:
The net force exerted on the cover can be calculated using a force balance as follows,
Calculate each force separately and substitute the values to above equation.
In addition, initial acceleration can be calculated using the Newton’s Second Law,
Newton’s Second Law is defined asthe force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a). This written as,
(b)
Interpretation:
Propose an alteration to prevent this kind of accidents.
Concept introduction:
The net force exerted on the cover can be calculated using a force balance as follows,
Calculate each force separately and substitute the values to above equation.
In addition, initial acceleration can be calculated using the Newton’s Second Law,
Newton’s Second Law is defined asthe force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a). This written as,
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Chapter 3 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
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- N2(8) + 3H2(g) → 2NH3(g) ДН — —92.6 kJ rxnarrow_forwardA unique plant was discovered from the hot springs of Maquinit, Coron, Palawan. To study the activity of the plant, approximately 5.00 g of the fresh plant was finely cut and ground and then mixed with an extraction buffer to make up a total of 1.00 mL crude plant extract. Approximately 19.00 mL of water was added to the plant extract. To determine the protein concentration of the extract, a bovine serum albumin (BSA) stock solution with a concentration of 300 μg mL-1 was used and mixtures with the following compositions and absorbance readings were prepared: A 100 μL aliquot of the diluted plant extract was added with 400 μL of water and was subjected to Bradford assay. Determine the protein concentration, in mg mL-1, of the original 1.00 mL crude extract if the absorbance of the diluted aliquot extract acquired from the analysis is 0.234.arrow_forwardA unique plant was discovered from the hot springs of Maquinit, Coron, Palawan. To study the activity of the plant, approximately 5.00 g of the fresh plant was finely cut and ground and then mixed with an extraction buffer to make up a total of 1.00 mL crude plant extract. Approximately 19.00 mL of water was added to the plant extract. To determine the protein concentration of the extract, a bovine serum albumin (BSA) stock solution with a concentration of 200 µg mL-1 was used and mixtures with the following compositions and absorbance readings were prepared: Tube # |Volume of BSA, mL |Volume of water, mL Absorbance |0.00 2.00 |0.000 2 |0.40 |1.60 0.094 3 |0.80 |1.20 |0.175 4 |1.20 |0.80 |0.282 |1.60 |0.40 |0.342 |2.00 |0.00 0.450 A 200 µL aliquot of the diluted plant extract was added with 300 µL water and was subjected to Bradford assay. Determine the protein concentration, in mg mL-1, of the original 1.00 mL crude extract if the absorbance acquired from the analysis is 0.200.arrow_forward
- What are slow-burning characteristics?arrow_forwardConsider the following simultaneous reactions: N2 + 3H2 → 2NH3(a) H2 + CO2 → CO + H2O (b) 550 mols are fed into the reactor, initially containing 67.4% H2, 21.3% N2 and the remainder CO2. The mixture at the outlet has 16% NH3 and 5% H2O (molar percentages). a- Calculate the degrees of advancement of reactions (a) and (b).arrow_forwardequal-size mixed flow reactors in series (total = 6.4. Reactant A (A → R, CA0 = 26 mol/m³) passes in steady flow through four 2 min). When steady state is achieved the concentration of A is found to be 11, 5, 2, 1 mol/m³ in the four units. For this reaction, what must be “plug so as to reduce CA from CAO = 26 to CAf = 1 mol/m³?arrow_forward
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