How do you know which compound has the highest viscosity? Viscosity is governed by the strength of intermolecular forces and especially by the shapes of the molecules of a liquid. Liquids whose molecules are polar or can form hydrogen bonds are usually more viscous than similar nonpolar substances. Why is glycerol viscosity so high? Stronger […]
Why does my car still look dirty after washing?
Why does my car still look dirty after washing? As for why it looks dirty, it’s probably a combination of things; the soap itself is not good, the brushes leave dirt behind, minerals in the water dried on the paint, embedded contaminants in the paint etc. This will remove contaminants left behind after washing that […]
Which of the following is positive temperature coefficient?
Which of the following is positive temperature coefficient? Normally metallic substance has positive temperature coefficient. Gold is a metallic substance. 02․ What is positive coefficient? A positive correlation coefficient means that as the value of one variable increases, the value of the other variable increases; as one decreases the other decreases. A negative correlation coefficient […]
What is simplest form mean?
What is simplest form mean? A fraction is in simplest form if the top and bottom have no common factors other than 1. In other words, you cannot divide the top and bottom any further and have them still be whole numbers. You might also hear simplest form called “lowest terms”. For example, the fraction. […]
What is an example of a field experiment?
What is an example of a field experiment? Field Experiment Field experiments are done in the everyday (i.e. real life) environment of the participants. The experimenter still manipulates the independent variable, but in a real-life setting (so cannot really control extraneous variables). An example is Holfing’s hospital study on obedience. Which of the following is […]
What is regularization strength?
What is regularization strength? Regularization is applying a penalty to increasing the magnitude of parameter values in order to reduce overfitting. To solve this, as well as minimizing the error as already discussed, you add to what is minimized and also minimize a function that penalizes large values of the parameters. Why is regularization used? […]
Why does heat transfer increase with flow rate?
Why does heat transfer increase with flow rate? In this mode, heat transfer is because of the mass transfer. As our common sense suggests, more the velocity, more the rate of mass transfer and hence more is the rate of convective heat transfer. Hence heat transfer coefficient increases with the increase in the velocity of […]
What are the 5 evidences of a chemical reaction?
What are the 5 evidences of a chemical reaction? Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change. Is rotting a chemical reaction? Rotting, burning, cooking, and rusting […]
Can a gun be traced without a serial number?
Can a gun be traced without a serial number? If the firearm has no serial number, and never had a serial number, the lack of a serial number renders the firearm illegal. [Except a non-NFA home manufacture that you have no intent to sell, which we will explain later.] The firearm had a serial number, […]