What does refractive index indicate? Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another. Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or […]
How do you tell the difference between independent and dependent variables?
How do you tell the difference between independent and dependent variables? The independent variable is the one the experimenter controls. The dependent variable is the variable that changes in response to the independent variable. The two variables may be related by cause and effect. If the independent variable changes, then the dependent variable is affected. […]
How tall is a shield volcano?
How tall is a shield volcano? 2,000 ft Is volcanic ash dangerous? Unlike the ash produced by burning wood and other organic materials, volcanic ash can be dangerous. Its particles are very hard and usually have jagged edges. As a result, it can cause eye, nose, and lung irritation, as well as breathing problems. Is […]
Como es el uso de energias limpias que realiza Colombia?
¿Cómo es el uso de energías limpias que realiza Colombia? Al ubicarse en la zona ecuatorial y contar con climas y ecosistemas variados, Colombia cuenta con un gran potencial para desarrollar energías limpias a partir del agua, el viento, el sol y de los residuos de biomasa como los de la caña de azúcar, aceite […]
What is the function of G protein?
What is the function of G protein? G proteins regulate metabolic enzymes, ion channels, transporter proteins, and other parts of the cell machinery, controlling transcription, motility, contractility, and secretion, which in turn regulate diverse systemic functions such as embryonic development, learning and memory, and homeostasis. What are the types of G proteins? G proteins are […]
What are the significant figure rules?
What are the significant figure rules? To determine the number of significant figures in a number use the following 3 rules: Non-zero digits are always significant. Any zeros between two significant digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant. Which value from his calculation most strongly affects […]
Where does electric potential equal zero?
Where does electric potential equal zero? The electric potential from a single charge is defined to be zero an infinite distance from the charge, and the electric potential associated with two charges is also defined to be zero when the charges are infinitely far apart. Can an electric potential exist at a point in? 3 […]
What is the relationship between atmospheric pressure and altitude?
What is the relationship between atmospheric pressure and altitude? Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than […]
What is the freeze/thaw cycle?
What is the freeze/thaw cycle? What is a freeze-thaw cycle? A freeze-thaw cycle is when the temperature fluctuates from above freezing (32F), to below freezing, and then back to above freezing. This is considered one freeze-thaw cycle, and Minneapolis, Minnesota experiences several freeze-thaw cycles each year. What do freeze/thaw cycles result in? Freeze-thaw cycles can […]