Why is a 1982 D penny rare? Newly found 1982-D Small date copper cent. The Mint switched over from striking copper-alloy to copper-plated zinc planchets sometime in mid-1982 as a cost saving measure – the copper-alloy planchets were too expensive to strike and the Mint was losing money. But it didn’t end there. What are […]
What acetone Cannot dissolve?
What acetone Cannot dissolve? Many kinds of plastic do not dissolve in acetone. Polypropylene and nylon are unaffected, PTFE unsurprisingly handles it just fine as well. Two kinds of plastic that do dissolve in acetone are PVC and polystyrene. Why is nail polish soluble in acetone but not in water? Nail varnish does not dissolve […]
How do you deflect a question?
How do you deflect a question? 8 ways to deflect tough interview questions Acknowledge the question without answering it. Ignore the question completely. Question the question. Attack the question, Decline to answer. Give an incomplete answer. State or imply the question has already been answered. Defer to the will of others. How do you evade […]
What is angle of refraction if angle of incidence is 35?
What is angle of refraction if angle of incidence is 35? Proper algebra yields to the answer of 32.1 degrees for the angle of refraction….A Lesson from the Laboratory. Angle of Incidence (degrees) Angle of Refraction (degrees) 35.0 25.5 40.0 28.9 45.0 32.1 50.0 35.2 What is the purpose of break-even point? Purpose. The main […]
What activities use energy?
What activities use energy? They include watching television, washing clothes, heating and lighting the home, taking a shower, working from home on your laptop or computer, running appliances and cooking. Residential uses of energy account for almost forty percent of total energy use globally. What is the importance of energy in points? Energy is essential […]
What industry has the highest injury rate?
What industry has the highest injury rate? Construction What is the most common work related disease? Occupational hearing loss is the most common occupational disease in the United States: it is so common that it is often accepted as a normal consequence of employment. What is the number 1 cause of work related fatalities? Motor […]
Which of the following are examples of hydrolysis reactions?
Which of the following are examples of hydrolysis reactions? Dissolving a salt of a weak acid or base in water is an example of a hydrolysis reaction. Strong acids may also be hydrolyzed. For example, dissolving sulfuric acid in water yields hydronium and bisulfate. Which is a hydrolysis reaction? Usually hydrolysis is a chemical process […]
Why diffusion is slowest in solid and fastest in gas?
Why diffusion is slowest in solid and fastest in gas? Diffusion takes place with slowest rate in the case of solids. The rate of diffusion is almost negligible in solids. Since the particles of solid have lowest kinetic energy so they do not move. Hence, diffusion takes a long time in the case of solid. […]
What does the water on the plastic wrap represent?
What does the water on the plastic wrap represent? This represents surface water, such as oceans, lakes, or streams. 4. Put plastic wrap over the top of the bowl, making sure it is on tight. What does the plastic wrap represent in this experiment? In the experiment, the beakers represented the earth’s atmosphere, the plastic […]
What is the working principle of capacitor?
What is the working principle of capacitor? A capacitor works on the principle that the capacitance of a conductor increases appreciably when an earthed conductor is brought near it. Hence, a capacitor has two plates separated by a distance having equal and opposite charges. What is the main function of capacitor? A capacitor is an […]