What is the direction of change in velocity? An object which experiences either a change in the magnitude or the direction of the velocity vector can be said to be accelerating. This explains why an object moving in a circle at constant speed can be said to accelerate – the direction of the velocity changes. […]
Is it good to take chlorophyll?
Is it good to take chlorophyll? Natural chlorophyll has no known side effects and so far only has benefits for humans. However, chlorophyllin as a supplement may have some possible side effects that you should consider such as: Occasional diarrhea. Discoloration of the urine or feces. How many times a day should I drink chlorophyll? […]
Do the bubbles in boiling water contain air?
Do the bubbles in boiling water contain air? These bubbles are indeed air. Most water has some air dissolved in it. When water is boiled, it undergoes a physical change, not a chemical change. The molecules of water don’t break apart into hydrogen and oxygen. Do small bubbles mean water is boiling? So, when a […]
What are two disadvantages to a coal power plant?
What are two disadvantages to a coal power plant? The major disadvantage of coal is its negative impact on the environment. Coal-burning energy plants are a major source of air pollution and greenhouse gas emissions. In addition to carbon monoxide and heavy metals like mercury, the use of coal releases sulfur dioxide, a harmful substance […]
What will happen if there is no convection current in the asthenosphere?
What will happen if there is no convection current in the asthenosphere? If for some reason convection stopped, air would not circulate, and weather would stop. Air wouldn’t flow over the waters, suck up moisture and then rain it out on land. Without this rain, all plants and crops would die. How does the process […]
Does CH4 have a dipole?
Does CH4 have a dipole? The dipole moment of methane CH4 is zero. Is CH4 a dipole-dipole force? Also CH4 molecules cannot have permenant dipole-dipole attractions because each of the species bonded to the carbon is identical and CH4 has a tetrahedral shape. Therefore the strongest intermolecular forces between CH4 molecules are Van der Waals […]
What are sources of noise?
What are sources of noise? There are many sources of noise pollution, but here are some of the main ones: Traffic noise. Traffic noise accounts for most polluting noise in cities. Air traffic noise. Construction sites. Catering and night life. Animals. Physical. Psychological. Sleep and behavioural disorders. What are the two major sources of noise […]
How fast do Tour de France riders go uphill?
What is the purpose of graphite?
What is the purpose of graphite? Graphite is used in pencils and lubricants. It is a good conductor of heat and electricity. Its high conductivity makes it useful in electronic products such as electrodes, batteries, and solar panels. What are the properties of graphite and diamond? Diamond Graphite The geometry is tetrahedral. The geometry is […]
What are five factors that affect the rate of a chemical reaction?
What are five factors that affect the rate of a chemical reaction? Five factors typically affecting the rates of chemical reactions will be explored in this section: the chemical nature of the reacting substances, the state of subdivision (one large lump versus many small particles) of the reactants, the temperature of the reactants, the concentration […]