What is Schottky defect with diagram? A Schottky defect is an excitation of the site occupations in a crystal lattice leading to point defects named after Walter H. In ionic crystals, this defect forms when oppositely charged ions leave their lattice sites and become incorporated for instance at the surface, creating oppositely charged vacancies. Why […]
Do you pinch skin for IM injection?
Do you pinch skin for IM injection? Insert needle at an 45o angle to the skin. Pinch up on SQ tissue to prevent injecting into muscle. Aspiration before injection is not required. What size needle is used for a subcutaneous injection? 5/8″ needle What are the 3 types of injections? The three main types of […]
What methods are used in primary treatment of wastewater?
What methods are used in primary treatment of wastewater? There are three basic biological treatment methods: the trickling filter, the activated sludge process, and the oxidation pond. A fourth, less common method is the rotating biological contacter. What is the main goal of primary treatment in a modern sewage treatment plant? The objective of primary […]
Why does stored energy increase as separation increases?
Why does stored energy increase as separation increases? If the capacitor is now disconnected, and its capacitance is changed by increasing the distance between the plates, its energy must increase since work is being done by moving charge under the influence of an electrical field. Why capacitance does not depend on voltage? 1 Answer. In […]
Does equilibrium constant depend on pressure?
Does equilibrium constant depend on pressure? Equilibrium constants are not changed if you change the pressure of the system. The only thing that changes an equilibrium constant is a change of temperature. If there are the same number of molecules on each side of the equation, then a change of pressure makes no difference to […]
Which system of Signalling is used on a single line?
Which system of Signalling is used on a single line? Electric token To provide for this, the electric train token system was developed. Each single-line section is provided with a pair of token instruments, one at the signal box at each end. What is single line and double line? A double-track railway usually involves running […]
Do Eye Drops help with eye strain?
Do Eye Drops help with eye strain? Over-the-counter artificial tears can help prevent and relieve dry eyes. Use them even when your eyes feel fine to keep them well-lubricated and prevent a recurrence of symptoms. Your doctor can suggest which eyedrops might be best for you. What foods help eye strain? Ten best foods for […]
How do you start writing a hypothesis?
How do you start writing a hypothesis? Developing a hypothesis Ask a question. Writing a hypothesis begins with a research question that you want to answer. Do some preliminary research. Formulate your hypothesis. Refine your hypothesis. Phrase your hypothesis in three ways. Write a null hypothesis. What is a good sentence for hypothesis? Their hypothesis […]
What system uses oxygen for energy?
What system uses oxygen for energy? Aerobic Glycolysis How does oxygen create energy? Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. When the cell uses oxygen to break down sugar, […]
What are the processes of physical and chemical weathering?
What are the processes of physical and chemical weathering? Physical, or mechanical, weathering happens when rock is broken through the force of another substance on the rock such as ice, running water, wind, rapid heating/cooling, or plant growth. Chemical weathering occurs when reactions between rock and another substance dissolve the rock, causing parts of it […]