Is infrared helpful or harmful?

Is infrared helpful or harmful? Medical studies indicate that prolonged IR exposure can lead to lens, cornea and retina damage, including cataracts, corneal ulcers and retinal burns, respectively. To help protect against long-term IR exposure, workers can wear products with IR filters or reflective coatings. What are the advantages and disadvantages of infrared waves? 1) […]

Are AC and DC capacitors interchangeable?

Are AC and DC capacitors interchangeable? AC capacitor does not have polarity, but the constructions are generally based on films without any kind of electrolyte. DC is just a special case where the polarity of the voltage does not change, so you can use AC capacitors – as is – in a DC application. Why […]

How do you sign Why?

How do you sign Why? The sign for “why” is made by touching (or coming near) your forehead with the fingers of your dominant hand then while bringing your hand forward and down , change it to the letter “y,” keeping your palm facing you. How can I learn sign language for free? 1. YouTube […]

What is the z-score for a 95% confidence interval?

What is the z-score for a 95% confidence interval? 1.96 What is the relationship between sample size and margin of error? Answer: As sample size increases, the margin of error decreases. As the variability in the population increases, the margin of error increases. As the confidence level increases, the margin of error increases. What is […]

Is nitrogen harmful to humans?

Is nitrogen harmful to humans? High concentrations of nitrogen gas can be particularly harmful to human health. Nitrogen can displace oxygen from ambient air within an enclosed space leading to a dangerous build-up of the inert gas. Is nitrogen safe to consume? Liquid nitrogen, although non-toxic, can cause severe damage to skin and internal organs […]

Does an object with mass always have momentum?

Does an object with mass always have momentum? An object with mass will have momentum. An object which is moving at a constant speed has momentum. An object can be traveling eastward and slowing down; its momentum is westward. Momentum is a conserved quantity; the momentum of an object is never changed. Can any object […]

How are the two variables associated with each other?

How are the two variables associated with each other? Association between two variables means the values of one variable relate in some way to the values of the other. Association is usually measured by correlation for two continuous variables and by cross tabulation and a Chi-square test for two categorical variables. What can be used […]

Why does temperature increase with mass?

Why does temperature increase with mass? If density increases ,volume decreases and if density decreases , volume increases. So density*volume=mass remains same as before. Gravitational pressure increases the more mass there is, and that pressure creates energy that increases temperature. Why does it take longer to heat up a larger volume of water? Simple: you’re […]

What RMS stands for on Titanic?

What RMS stands for on Titanic? Royal Mail Ship What is rms medical condition? Overview. Rhabdomyosarcoma (RMS) is a rare type of cancer that forms in soft tissue — specifically skeletal muscle tissue or sometimes hollow organs such as the bladder or uterus. RMS can occur at any age, but it most often affects children. […]

What are the two main types of eclipses?

What are the two main types of eclipses? There are two types of eclipses on Earth: an eclipse of the moon and an eclipse of the sun. What Is a Lunar Eclipse? The moon moves in an orbit around Earth, and at the same time, Earth orbits the sun. Sometimes Earth moves between the sun […]

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