Why are pools warmer at night? When the evening air cools down from the heat of the sun, the difference between the air temperature and the pool water changes. Since the pool water temperature will not change that much within one or two hours, the cooler air makes the water feel warmer than it was […]
Which best describes what happens to sunlight after it passes through the keyhole?
Which best describes what happens to sunlight after it passes through the keyhole? Which best describes what happens to sunlight after it passes through the keyhole of a door? It converges into one particular shadow region. It spreads out into multiple shadow regions. What is the formula for magnification obtained with a mirror? The level […]
What are the two laws of electromagnetic induction?
What are the two laws of electromagnetic induction? First law: Whenever a conductor is placed in a varying magnetic field, EMF induces and this emf is called an induced emf and if the conductor is a closed circuit than the induced current flows through it. Second law: The magnitude of the induced EMF is equal […]
What is hydrological cycle and its importance?
What is hydrological cycle and its importance? The hydrologic cycle is important because it is how water reaches plants, animals and us! Besides providing people, animals and plants with water, it also moves things like nutrients, pathogens and sediment in and out of aquatic ecosystems. What do u mean by hydrological cycle? HelpCenter Definition. The […]
What process is bond breaking?
What process is bond breaking? Breaking and making bonds Bond-breaking is an endothermic process. Energy is released when new bonds form. Bond-making is an exothermic process. Whether a reaction is endothermic or exothermic depends on the difference between the energy needed to break bonds and the energy released when new bonds form. Why Neutralisation is […]
How have humans affected the biosphere explain the positive and negative effects?
How have humans affected the biosphere explain the positive and negative effects? The burning of fossil fuels and the growth of animal agriculture has led to large amounts of greenhouse gases (such as carbon dioxide and methane) in the atmosphere. Higher concentrations of greenhouse gases trap more heat in the biosphere and result in global […]
How important are learning associations?
How important are learning associations? Associative Learning and Teaching Because associative learning relies on the principle that ideas and experience can be linked together and ultimately reinforce one another, association can be used to help students remember information. The keyword method is a form of associative learning that enhances memory. What is the association effect? […]
How do you calculate the refractive index of silicon?
How do you calculate the refractive index of silicon? E= hu =1240/wavelength (nm). Which is the most beneficial index profile in single mode fibers? graded index profile What is the lifetime of ILDS? Your symptoms can range from mild to severe. Some interstitial lung diseases have a better prognosis than others. One of the most […]
How do you calculate total effort?
How do you calculate total effort? Use the following process to estimate the total effort required for your project: Determine how accurate your estimate needs to be. Create the initial estimate of effort hours for each activity and for the entire project. Add specialist resource hours. Consider rework (optional). Add project management time. How do […]
What are the two points used to calibrate a thermometer?
What are the two points used to calibrate a thermometer? Answer: There are two points in a temperature scale,i.e, Upper fixed point and lower fixed point. What is upper fixed point of a thermometer? The upper fixed point, or steam point, is the temperature of pure boiling water at normal atmospheric pressure. Note that the […]