Category: Physics

Is coal a energy? Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. What emerging technologies will make coal safer? Low-NOx burners allow coal-fired plants to reduce nitrogen oxide emissions by […]

What are the primary differences between products and services? A product is a tangible item that is put on the market for acquisition, attention, or consumption, while a service is an intangible item, which arises from the output of one or more individuals. What are the key differences between production of goods and delivery of […]

Are heat and temperature inversely proportional? (a) The amount of heat transferred is directly proportional to the temperature change. To double the temperature change of a mass m, you need to add twice the heat. (c) The amount of heat transferred depends on the substance and its phase. How will the difference in temperature of […]

Do humans need enrichment? Ultimately for humans, enrichment needs to make us feel valued and good about the contribution we are making. As with animals, there is not one form of enrichment that works for all. What is the primary source of enrichment for rats? For rats and mice, I place high-fiber rabbit food in […]

Does the brain sit in fluid? Being surrounded by CSF helps the brain float inside the skull, like a buoy in water. Because the brain is surrounded by fluid, it floats like it weighs only 2% of what it really does. If the brain did not have CSF to float in, it would sit on […]

What is 0.312 as a fraction in simplest form? How to Write 0.312 or 31.2% as a Fraction? Decimal Fraction Percentage 0.336 42/125 33.6% 0.328 41/125 32.8% 0.32 40/125 32% 0.312 39/125 31.2% What is 0.45 as a fraction in simplest form? So, 0.45=920 as a proper fraction in simplest form. What is 3/8 as […]

What are the different levels of a food pyramid called? There are six categories in the Food Pyramid: the bread, cereal, rice, and pasta group (grains), the fruit group, the vegetable group, the meat, poultry, fish, dry beans, eggs, and nuts group (protein), the milk, yogurt, and cheese group (dairy), and the fats, oils, and […]

Which cancer is known as the silent killer? Pancreatic Cancer: The Silent Killer. Which cancers are easiest to treat? What are the most curable cancers? Breast cancer. Prostate cancer. Testicular cancer. Thyroid cancer. Melanoma. Cervical cancer. Hodgkin lymphoma. Takeaway. Which cancers are the most painful? Primary tumors in the following locations are associated with a […]

Is there a translucent paint? Any color and virtually any type of paint can be made transparent and used for a variety of decorative and faux effects. Mixing paint with faux glazing medium or paint additives allows you to use the paint to give it a translucent, transparent look that doesn’t drip or run. What […]

Can you drink bottled water left in hot car? Some researchers who study plastics recommend against drinking water from plastic bottles that have been sitting in hot places for a long time — such as a car sizzling in the sun — concerned that the heat could help chemicals from the plastic leach into the […]