Why can a machine never have an efficiency of 100 %? A machine cannot be 100 percent efficient because output of a machine is always less than input. A certain amount of work done on a machine is lost to overcome friction and to lift some moving parts of the machine. Is there a 100 […]
Do airbags actually save lives?
Do airbags actually save lives? NHTSA estimates that the combination of an air bag plus a seat belt reduces the risk of death in frontal crashes by 61 percent. From 1987-2015, frontal air bags saved 44,869 lives. In 2016, air bags are estimated to have saved 2,756 people. Should airbags be on or off? You […]
What is the formula for frequency of light?
What is the formula for frequency of light? Divide the speed of light, ~300,000,000 m/s, by the wavelength in m. This gives you the wave’s frequency. What is the frequency of red light? around 430 terahertz Does blue or red light have a higher frequency? Blue light has shorter waves, with wavelengths between about 450 […]
Is energy transferred when two atoms collide?
Is energy transferred when two atoms collide? These atoms frequently collide and transfer energy between one another. Therefore, when two atoms collide and start to oscillate, some energy may be transferred to other particles by collisions. If this happens, a stable interaction can form between the two particles; they will “stick” together. At what point […]
What is the relation between magnetic flux and current?
What is the relation between magnetic flux and current? Sample Answer: The magnetic flux density through a coil is directly proportional to current. When the current increases the magnetic flux density will increase. What is electromagnetic induction What are the ways to induce current in a coil? Electromagnetic or magnetic induction is the production of […]
What is the main goal of human relations?
What is the temperature difference between steam and boiling water?
What is the force of gravity in Newtons?
What is the force of gravity in Newtons? G represents the gravitational constant, which has a value of 6.674⋅10−11N(m/kg)2 6.674 ⋅ 10 − 11 N (m/kg) 2 . Because of the magnitude of G , gravitational force is very small unless large masses are involved. Is gravity a pushing force? In general relativity, gravity neither […]
What is the unit for magnitude?
What is the unit for magnitude? Especial names and symbols magnitude symbol unit frequency n,f hertz force F newton pressure p pascal energy E joule How do you explain magnitude? English Language Learners Definition of magnitude : the size, extent, or importance of something. : a number that shows the brightness of a star. : […]
What has the biggest impact on your credit score?
What has the biggest impact on your credit score? Since payment history is the most important factor in both of the two biggest credit scoring models – FICO Score and VantageScore – then paying your bills on time will have the biggest positive impact on your credit scores. Paying credit card balances in full is […]