Why does a paperclip sink in soapy water? When you initially drop the paper clip into the bowl of water, it sinks, as the paperclip is too dense. Adding the dish soap breaks the bonds between the water molecules, thus breaking the surface tension and causing the paper clip to sink. Does a paperclip sink? […]
How do I fill in multiple blanks in canvas?
How do I fill in multiple blanks in canvas? Creating a Fill in Multiple Blanks Question for a Quiz Choose Fill in Multiple Blanks from the Question Type dropdown menu. Enter the question. Click the dropdown menu next to Show Possible Answers for and choose one of the blanks. Enter a possible answer. Is canvas […]
What happens to the resistance when the length of the conductor is doubled without affecting the thickness of the conductor?
What happens to the resistance when the length of the conductor is doubled without affecting the thickness of the conductor? what happens to the resistance when length of conductor is doubled without affecting the thickness of conductor? R = ρl/A. According to this relation, resistance is directly proportional to length of the conductor. Hence, when […]
Which method has been used only once?
Which method has been used only once? The method of formal amendment that has only been used once is through a proposition by Congress and which is then ratified through conventions, in 3/4 of the states. This was used for the 21st amendment. Why is amending the constitution difficult? The founders made the amendment process […]
What is the average frequency of a radio wave?
What is the average frequency of a radio wave? Radio waves are a type of electromagnetic (EM) radiation with wavelengths in the electromagnetic spectrum longer than infrared light. They have have frequencies from 300 GHz to as low as 3 kHz, and corresponding wavelengths from 1 millimeter to 100 kilometers. What happens to the wavelength […]
What is eDNA Metabarcoding?
What is eDNA Metabarcoding? Environmental DNA (eDNA) metabarcoding is a novel method of assessing biodiversity wherein samples are taken from the environment via water, sediment or air from which DNA is extracted, and then amplified using general or universal primers in polymerase chain reaction and sequenced using next-generation sequencing to … What can eDNA tell […]
What happens when an acid is mixed with base?
Does a step up transformer have more windings?
Does a step up transformer have more windings? A transformer that increases the voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a step-up transformer. Conversely, a transformer designed to do just the opposite is called a step-down transformer. What is the turns ratio of a transformer What can […]
What happens when you mix sulfur and vinegar?
What happens when you mix sulfur and vinegar? hydrogen sulphide, formula H2S. This compund forms by a chemical reaction between the vinegar (an acid) and small amounts of metal sulphides (= compounds of a metal and sulphur). It has the well-known rotten-egg odour. These metal sulphides may be present in the ashes or may be […]
What are the different characteristics of waves?
What are the different characteristics of waves? Waves are disturbances that travel through a fluid medium. Several common wave characteristics include frequency, period, wavelength, and amplitude. There are two main type of waves, transverse waves and longitudinal waves. Let’s talk about wave characteristics. How much time do you have to escape a tsunami? A tsunami […]