What are the most important properties of a star? Mass – The single most important property that determines other properties of the star. Luminosity – The total amount of energy (light) that a star emits into space. Temperature – surface temperature, closely related to the luminosity and color of the star. What does the color […]
What are the sources of error in this experiment?
What are the sources of error in this experiment? You are measuring against a standard, using an instrument that can never perfectly duplicate the standard, plus you’re human, so you might introduce errors based on your technique. The three main categories of errors are systematic errors, random errors, and personal errors. What is meant by […]
What is the CMS system?
What is the CMS system? A Content Management System, or CMS, is a piece of software designed to help users create and edit a website. They have evolved to help design the look of websites, track user sessions, handle searches, collect visitor comments, host forums and much much more. What is CMS LHC? The Compact […]
What are the negative effects of the atmosphere?
What are the negative effects of the atmosphere? Acid rain, climate change and smog all damage the Earth surface. Contaminated water and gases seep into the earth, changing the composition of soils. That directly affects agriculture, changing crop cycles and the composition of the food we all eat. How do humans affect the atmosphere? Humans […]
What is best treatment for low bone density?
What is best treatment for low bone density? Pharmacologic treatment with alendronate, risedronate, zoledronic acid, or denosumab should be prescribed for women with osteoporosis to reduce the risk of hip and vertebral fractures. Pharmacologic treatment should continue for five years, during which time bone density monitoring should not be done. What happens if you have […]
How many valence electrons are present in the sodium atom?
How many valence electrons are present in the sodium atom? one valence electron How many valence electrons are present in sodium? Why does sodium have one valence electron? Sodium has one valence electron. The element has a full innermost electron shell of two electrons and a full shell of eight electrons in the next shell. […]
What is the formula for calculating acceleration?
What is the formula for calculating acceleration? Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Does constant velocity have to be in a straight line? Yes. Velocity […]
What are natural resources quizlet?
What are natural resources quizlet? A natural resource is anything that people can use which comes from nature. Examples of natural resources are air, water, wood, oil, wind energy, hydro-electric energy, iron, and coal. What is an example of a renewable natural resource? Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind […]