What type of system is best to observe conservation of mass? Answer. The law of conservation of mass can be best observed in any type of chemical reaction that is a closed system. What is the difference between an open and a closed system? There are three types of systems in thermodynamics: open, closed, and […]
Which of these star clusters is oldest?
Which of these star clusters is oldest? A team of astronomers using the Gemini-South telescope has discovered one of the oldest stellar clusters in the Milky Way. The team’s results date the globular cluster, named HP 1, at about 12.8 billion years, making its stars among the oldest ever found in our Galaxy. Which group […]
Can I scrape plaque off my teeth?
Can I scrape plaque off my teeth? Brushing and flossing daily is really important because plaque quickly becomes tartar, and once it’s tartar, you can’t remove it on your own, or at least, you shouldn’t. Tartar build-up needs to be scraped off, and trying to do this at home can cause you to scratch the […]
Does gold have the same properties as silver?
Does gold have the same properties as silver? A review of the table shows that gold and silver are very similar to each other. Generally, compared to platinum and palladium, gold and silver have a lower melting and boiling point, are better conductors, softer, more reflective, and more abundant. Why do copper and silver have […]
How long does radioactive isotope stay in your body?
How long does radioactive isotope stay in your body? The half-lives of radioisotopes used in medicine range from a few minutes to a few days. For example, rubidium-82, which is used for myocardial perfusion imaging has a half- life of 1.26 minutes, while iodine-131, used in thyroid treatment and diagnosis, has a half- life of […]
How much time will it take to learn physics?
How much time will it take to learn physics? The thing with high-school physics is that if you know high-school mathematics very well and have atleast average memory, it takes about half a year of about an hour or two daily to be able to ace SAT physics exam. If you struggle with mathematics, learn […]
Is it bad if an extension cord gets hot?
What are three things that affect longshore currents?
What are three things that affect longshore currents? When a wave breaks at a more acute (steep) angle on a beach, encounters a steeper beach slope, or is very high, longshore currents increase in velocity. Conversely, a wider breaking angle, gentler beach slope, and lower wave height slows a longshore current’s velocity. What causes long […]
What does left curve mean?
What does left curve mean? The roadway ahead curves to the left. Slow your speed and keep well to the right. The sign may be accompanied by an advisory speed placard, helping you navigate the curve safely. What are the two classification of lines? How many types of lines are there? There are two basic […]