Category: Physics

What is a normal Haemoglobin level? The normal range for hemoglobin is: For men, 13.5 to 17.5 grams per deciliter. For women, 12.0 to 15.5 grams per deciliter. What are the factors which enable the binding of oxygen to Haemoglobin? Several factors influence the binding of oxygen to hemoglobin: temperature, pH, PCO2 and 2,3 diphosphoglycerate […]

How can you determine if the liquid is water? A very easy solution is to take a sample of colourless liquid and put on stove if it starts boiling exactly at 100 ºC then it is pure water. Any other colourless liquid such as vinegar always have different boiling point. How do you identify whether […]

Why did Germany worry about the alliance between France and Russia? 1 Answer. Probably because Germany was and still is located in between the two nations and, in case of war, would have been forced to fight on two fronts simultaneously (a not very strategical advantageous situation indeed!). Is France allied with Russia? Dual Alliance, […]

What results when a wave reflects off a fixed boundary? The right end is held tightly; it is a fixed end. The wave reflects off this fixed end and returns as a downward displaced pulse. Reflection off a fixed end results in inversion. What happens to a wave at a fixed boundary? A wave reflected […]

Which is the SI unit? There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd). What is dimension formula? Dimensional formula (equation) (Definition) : An equation, which gives the relation between fundamental units and […]

How do I present a large amount of data in Excel? To do this, click on the Power Pivot tab in the ribbon -> Manage data -> Get external data. There are a lot of options in the Data Source list. This example will use data from another Excel file, so choose Microsoft Excel option […]

What is the relationship between rolling static and sliding friction? Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases. What is the cause of friction What is the difference between […]

What happens when a solid turns into a liquid? When a solid is heated the particles gain energy and start to vibrate faster and faster. Although the particles are still loosely connected they are able to move around. At this point the solid is melting to form a liquid. The particles in the liquid are […]

What is the relationship between the kidneys and the liver? Generally speaking, the liver and kidney are key organs for regulation of homeostasis and metabolism in the body: the liver is the major player for metabolism of glucose (energy), protein, and lipid, and kidney is that for homeostasis of water, electrolytes, and acid-base balance. What […]

How do you solve a basic electrical circuit problem? How to Solve a Basic Circuit Step 1: Identify the Voltage (V) of the Circuit and Recognize the Type of Resistance. The voltage of a circuit is displayed by the symbol found in Fig. Step 2: Finding the Total Resistance. Step 3: Solve for Current (I) […]