What are the causes and effects of eutrophication? “Eutrophication is an enrichment of water by nutrient salts that causes structural changes to the ecosystem such as: increased production of algae and aquatic plants, depletion of fish species, general deterioration of water quality and other effects that reduce and preclude use”. What can humans do to […]
What is positive and negative charge in atoms?
How far from the wall is the foot of the ladder?
How far from the wall is the foot of the ladder? 22.56 feet What is the spacing between steps on a ladder? (i) Rungs, cleats, and steps of portable ladders (except as provided below) and fixed ladders (including individual rung/step ladders) shall be spaced not less than 10 inches (25 cm) apart, nor more than […]
Is cooking a chemical change?
Is cooking a chemical change? Rotting, burning, cooking, and rusting are all further types of chemical changes because they produce substances that are entirely new chemical compounds. For example, burned wood becomes ash, carbon dioxide, and water. An unexpected color change or release of odor also often indicates a chemical change. What type of chemical […]
What force prevents an object from moving when pulled?
What force prevents an object from moving when pulled? Friction Does a heavier object move faster? The force of gravity is the weight of the body. Hence an object with greater mass feels greater force than the other one. So even if the slope is same for both objects, a massive object moves faster through […]
What increases when frequency increases?
What increases when frequency increases? From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer. There are two basic types of waves: mechanical and electromagnetic. What is the highest frequency ever generated? At least ~100 GeV, which corresponds to 2*1025 Hz. I […]
How do you calculate how high an object will go?
Which 5 SI units are commonly used in chemistry?
Which 5 SI units are commonly used in chemistry? The five SI base units commonly used by chemists are the meter, the kilogram, the kelvin, the second, and the mole. What metric units are commonly used to measure length, volume, mass, temperature and energy? In SI, the basic unit of length is the meter (m). […]
How long do rechargeable batteries last if not used?
What are examples of ratio variables?
What are examples of ratio variables? Examples of ratio variables include: enzyme activity, dose amount, reaction rate, flow rate, concentration, pulse, weight, length, temperature in Kelvin (0.0 Kelvin really does mean “no heat”), survival time. What are the 5 most common process variables? The most common process variables fall into five major types: level, flow, […]