What are the three units of frequency? Given this definition, it is reasonable that the quantity frequency would have units of cycles/second, waves/second, vibrations/second, or something/second. Another unit for frequency is the Hertz (abbreviated Hz) where 1 Hz is equivalent to 1 cycle/second. Is frequency denoted by V? The letter “v” represents velocity and “ƒ” […]
Why do we use DST in KF titration?
Why do we use DST in KF titration? DST is primary standard and it is stable up to 150 degree Centigrade. It release free water molecules easily when reacts with KF reagent. This DST has 15.66% water molecules so we can easily calculate and standardize the KF reagent. We use the factorof DST the compound […]
Why is sweating good for your body?
Why is sweating good for your body? Sweat is mainly water, but it also contains some salts. Its main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools. An additional function of sweat is to help with gripping, by slightly moistening the palms. Is sweat […]
What is unique about the phosphorus cycle?
What is unique about the phosphorus cycle? Unlike the compounds of other matter cycles phosphorus cannot be found in air in the gaseous state. This is because phosphorus is usually liquid at normal temperatures and pressures. It is mainly cycling through water, soil and sediments. In the atmosphere phosphorus can mainly be found as very […]
How many moles are in a substance?
How many moles are in a substance? 1 mole is the amount of a substance that contains exactly 6.022×1023 of something. While this something could be anything, because it is such a large number it is usually reserved for atoms, molecules, electrons, and ions. What is the numerical value of mole? 1 mole = 6.022×1023 […]
Why do seismologists no longer use the Richter scale?
Why do seismologists no longer use the Richter scale? The Richter scale was abandoned because it worked best for earthquakes in southern California, and only those hitting within about 370 miles (600 kilometers) of seismometers. The moment magnitude scale captures all the different seismic waves from an earthquake, giving a better idea of the shaking […]
What were two of the important things we learned from the Gemini program?
What were two of the important things we learned from the Gemini program? What were the important things we learned about Gemini program? In this program, each capsule held 2 astronauts and included new space experiments. The astronauts could walk in space outside their capsules. Two spaceships came together out there. Who flew the first […]
What is more important to hitting a homerun?
Is U final or initial velocity?
Is U final or initial velocity? It is represented by letter u. Three initial velocity formulas based on equations of motion are given below, If time, acceleration and velocity are known. The initial velocity is formulated as….Formulas for Initial Velocity. u Initial velocity v Final Velocity t time taken s displacement a acceleration What is […]