Why is the gravitational constant important? The constant, G, determines the strength of Newton’s inverse square law in a particular system of physical units and is, not surprisingly, known as Newton’s constant of gravitation. It is considered to be a fundamental constant of nature. Gravity is also by far the weakest force. Who found the […]
What are the similarities and differences between oceanic crust and continental crust?
What are the similarities and differences between oceanic crust and continental crust? The continental crust is made mostly of rocks with a composition similar to granite (a light-colored rock you would expect to find in the Sierra Nevada), whereas the oceanic crust is made mostly of rocks with a composition of basalt (a dark- colored […]
What are the six different types of chemical reactions?
What are the six different types of chemical reactions? Six common types of chemical reactions are: synthesis, decomposition, single-displacement, double-displacement, combustion and acid-base reactions. Scientists classify them based on what happens when going from reactants to products. Can a synthesis reaction have 3 reactants? 1 Answer. The production of group 1 and group 2 hydrogen […]
What has 18 protons and 22 neutrons?
What has 18 protons and 22 neutrons? Name Argon What has 9 protons and 9 Neutrons? Fluorine How many electrons are in fluorine 21? So… for the element of FLUORINE, you already know that the atomic number tells you the number of electrons. That means there are 9 electrons in a fluorine atom. How many […]
What are the different types of optical instruments?
What are the different types of optical instruments? An optical instrument (or “optic” for short) is a device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine their characteristic properties. Common examples include periscopes, microscopes, telescopes, and cameras. Is a mirror an optical device? A mirror […]
What are the different types of electoral system?
What are the different types of electoral system? The electoral systems currently in use in representative democracies can be divided into two basic kinds: majoritarian systems and proportional representation systems (often referred to as PR). In majoritarian electoral systems, winning candidates are those having attracted the most votes in a given electoral district. What are […]
How do I get rid of dry ice?
What are the similarities between mitochondria and chloroplast?
What are the similarities between mitochondria and chloroplast? Both the chloroplast and the mitochondrion are organelles found in the cells of plants, but only mitochondria are found in animal cells. The function of chloroplasts and mitochondria is to generate energy for the cells in which they live. The structure of both organelle types includes an […]
How can you tell the difference between aluminum and magnesium?
How can you tell the difference between aluminum and magnesium? Most recent answer Magnesium versus aluminum is highly reactive and less stable than aluminum. Magnesium, when compared to aluminum, is softer and more expensive, and has the tendency to bend easily. Magnesium, when compared to aluminum, is lightweight and valuable, whereas forged aluminum is stronger. […]
What are two most abundant elements in magma?
What are two most abundant elements in magma? Being that oxygen and silicon are the most abundant elements in magma, geologists define magma types in terms of their silica content, expressed as SiO2. These differences in chemical composition are directly related to differences in gas content, temperature, and viscosity. What is magma very short answer? […]