Category: Physics

What is heating and cooling curve? Heating curves show how the temperature changes as a substance is heated up. Cooling curves are the opposite. They show how the temperature changes as a substance is cooled down. What materials change when heated or cooled? We can change a material into its other states by heating it […]

What is the average kinetic energy of H2? (b) What is the average kinetic energy of the H2(g) molecules? The average kinetic energy of the H2(g) molecules is 6.2 × 10−21 J because both gases are at the same temperature. Do all molecules have the same kinetic energy? Not all molecules will have the same […]

What are disadvantages of iodine? Excessive iodine consumption can lead to similar symptoms as iodine deficiency, including thyroid dysfunction and goiter. Too much iodine may lead to thyroiditis and thyroid papillary cancer. At very high levels, iodine poisoning can cause: burning of the mouth, throat, and stomach. What is the best iodine supplement on the […]

What is the life cycle of a cumulus cloud? Traditionally, a cloud lifetime is split into three phases: (1) a young cloud with a strong vertical growth; (2) a mature cloud, where the inflow of air from the subcloud thermal is assumed to be in balance with detrainment from the cloud into the environment; and […]

What is the skinniest state? The state, however, didn’t fare as well as Colorado, rated the skinniest state by WalletHub, with Utah, Hawaii, Massachusetts and the District of Columbia rounding out the slimmest five stats. Mississippi was ranked fattest, followed by West Virginia, Arkansas, Kentucky and Tennessee. What is the fattest state in America 2020? […]

Can an elephant outrun a human? Yes, elephants can run at 35-40kmph (25mph). Usain Bolt (the fastest man in the world was clocked at 37.383kmph. The short answer is no, humans cannot outrun elephants. A charging elephant can “run” much faster than you but if you zig-zag, you might be able to confuse it. Who […]

What are the four phases of self-regulation? According to Pintrich (2000) model, SRL is compounded by four phases: (1) Forethought, planning and activation; (2) Monitoring; (3) Control; and (4) Reaction and reflection. Each of them has four different areas for regulation: cognition, motivation/affect, behavior and context. What is the likely effect of Disidentification quizlet? What […]

Why does a white shirt look blue? Often when working in the shade, or anywhere we need Cloudy or Shade white balance, we’ll often see a blue tint in the white clothing. I suspect this might be due to detergents being used which give a blue-ish tint to white clothing to make them appear cleaner. […]

What does the 2 mean in 3s2? tells us the electrons are in the n=2 energy level. But what do the superscripts 2 after the “s” and 6 after the “p” refer to? These refer to the number of electrons in that particular orbital/shell. So, for neon, there are 2 electrons in the 1s shell, […]

Why Nitrogen is not a greenhouse gas? Oxygen and nitrogen are not greenhouse gases, because they are transparent to infrared light. These molecules are invisible because when you stretch one, it doesn’t change the electric field. In general, symmetrical molecules with only two atoms are not greenhouse gases. Why is sulfur dioxide not a greenhouse […]