Do electric trains have gears? modern locomotives use electric traction. This is much more flexible than gears. Diesels run generators from the combustion engine (usually constant torque) and transform the energy using an alternator/generator to run the traction motors. No, trains have no gears, since these are unfeasible. Does a train smoke? It has a […]
Is Graphite is a good conductor of electricity?
Is Graphite is a good conductor of electricity? Graphite is the one ‘allotropic form’ of carbon. In a graphite molecule, one valence electron of each carbon atom remains free. Due to the free electrons in its framework, graphite can perform electricity. Therefore, graphite is said to be a good conductor of electricity. Why Graphite is […]
How do you compare phylogenetic trees?
How do you compare phylogenetic trees? Two phylogenetic trees to compare are generated by genome regions of one species, and thus, they have the same number of leaf nodes. As each leaf node is labeled by a name, we can easily associate two leaves with the same name. Instead of computing the similarity between two […]
Is energy in transit from a body of higher temperature to one of lower temperature?
Is energy in transit from a body of higher temperature to one of lower temperature? Heat may be defined as energy in transit from a high temperature object to a lower temperature object. An object does not possess “heat”; the appropriate term for the microscopic energy in an object is internal energy. How do you […]
How long does a hurricane last on land?
What are the 4 components of the skeletal system?
What are the 4 components of the skeletal system? The skeletal system is composed of four main fibrous and mineralized connective tissues : bones, ligaments, tendons, and joints. Bone: A rigid form of connective tissue that is part of the skeletal system of vertebrates and is composed principally of calcium. What are the major components […]
When an object is dropped from certain height?
What is a unit cell called?
What is a unit cell called? A unit cell is the most basic and least volume consuming repeating structure of any solid. It is used to visually simplify the crystalline patterns solids arrange themselves in. When the unit cell repeats itself, the network is called a lattice. How many types of unit cells are there? […]
What is photomultiplier tube used for?
What is photomultiplier tube used for? A photomultiplier tube, useful for light detection of very weak signals, is a photoemissive device in which the absorption of a photon results in the emission of an electron. These detectors work by amplifying the electrons generated by a photocathode exposed to a photon flux. What is the function […]
What RPM do jet engines run at?
What RPM do jet engines run at? around 10,000-25,000 rpm Why do jet engines smoke? Condensation in Exhaust Gases As the airplane’s engines release exhaust gases, moisture vapor is released as well. The cold temperature and low air pressure at high altitudes forces this moisture to condense, which creates the characteristic white smoke trail for […]