Why do sounds get softer? Changing the amplitude of a sound wave changes its loudness or intensity. When you pluck a string gently, the sound will be softer because you have transferred less energy to the string. By using less energy, the string does not vibrate as much and will move less air than if […]
How do you calculate the overall heat transfer coefficient of a heat exchanger?
How do you calculate the overall heat transfer coefficient of a heat exchanger? Composition = the overall heat transfer coefficient (W/(m2•K)) = the contact area for each fluid side (m2) (with and expressing either surface) = the thermal conductivity of the material (W/(m·K)) = the individual convection heat transfer coefficient for each fluid (W/(m2•K)) = […]
Which civil engineer has highest salary?
Which civil engineer has highest salary? Top 10 Highest Paying Civil Engineering Careers Engineering Project Managers. Average Salary: $80,212 – $166,848. Senior Civil Engineer. Average Salary: $81,000 – $139,000. Engineering Managers. Civil Engineer. Architect. Engineering Inspectors and Regulatory Officers. Civil Engineering Drafter. Civil Engineering Technologist. Which is best company for civil engineer? Top Construction Companies […]
Why you should not sleep with your cell phone at night?
Why you should not sleep with your cell phone at night? The blue light from the screen suppresses melatonin The blue light that your smart phone emits is not only bad for your vision, but it’s bad for your brain too. Dr. Walia says that research has found a correlation between suppressed levels of melatonin […]
Does higher mass equal higher inertia?
Does higher mass equal higher inertia? The more mass an object has, the greater its inertia and the more force it takes to change its state of motion. The amount of inertia an object has depends on its mass – which is roughly the amount of material present in the object. What’s the difference between […]
What are the factors of good health?
What are the factors of good health? So just what are the most important factors for establishing optimum health. Studies indicate that the following five factors make the biggest difference in overall health and wellness: 1) diet; 2) rest; 3) exercise; 4) posture; and 5) avoiding the use of alcohol, drugs and tobacco. What are […]
Why do birds sunbathe with their beaks open?
Why do birds sunbathe with their beaks open? The ‘preen-oil’ that this gland produces helps to keep the feathers flexible and hygienic. It has been suggested that the sun affects the preen-oil in the feathers in some beneficial manner, or that it helps to synthesize the Vitamin D from the preen-oil. This preen-oil also aids […]
What is the highest compression ratio for 91 octane?
What is the highest compression ratio for 91 octane? about 10 to 1 Does higher compression increase horsepower? The generally accepted gauge for adding compression is that one full point of compression can add between 3 to 4 percent power. So, if an engine is making 50 horsepower and we add a full point of […]
What are 3 examples of liquids?
What are 3 examples of liquids? Examples of Liquids Water. Milk. Blood. Urine. Gasoline. Mercury (an element) Bromine (an element) Wine. What is liquid explain? A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of […]
What are 3 ways waves are measured?
What are 3 ways waves are measured? Scientists use the terms amplitude, wavelength, and frequency to refer to some commonly measured properties of waves. What are three properties of a wave that can be measured? Use combination notes in your notebook to describe how waves can be measured. A is the highest point, or peak, […]