Is atomic nucleus positive or negative? The nucleus (plural, nuclei) is a positively charged region at the center of the atom. It consists of two types of subatomic particles packed tightly together. The particles are protons, which have a positive electric charge, and neutrons, which are neutral in electric charge. Can nucleus be positive? The […]
What is an example of earth and space science?
What is an example of earth and space science? For example: Investigating the exchange of carbon dioxide between the ocean and atmosphere by undertaking practical investigations and processing and interpreting secondary data. Investigating the Sun, Moon and Earth cycles by exploring and developing different models. What are the 3 major branches of earth science? Earth […]
What is the effect of pollution on human life How is pollution controlled?
What is the effect of pollution on human life How is pollution controlled? Air pollution is considered as the major environmental risk factor in the incidence and progression of some diseases such as asthma, lung cancer, ventricular hypertrophy, Alzheimer’s and Parkinson’s diseases, psychological complications, autism, retinopathy, fetal growth, and low birth weight. What is an […]
Why do planes fly over water instead of land?
Why do planes fly over water instead of land? At lower levels, being over sea would typically offer less turbulence, in part because as the ground warms you can encounter rising air thermals. Generally, airliners fly whatever route provides the shortest time, which is not always the shortest distance, often called the Great Circle route. […]
What two properties of water make capillary action possible?
What two properties of water make capillary action possible? Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances). Why is capillary action important to life? Capillary action is important for moving water around. […]
What are the possible sources of error in a bomb calorimetry experiment?
What are the possible sources of error in a bomb calorimetry experiment? Sources of error include the percent error in water measurement and incomplete vaporization of the nichrome wire. The internal volume of the Parr-bomb was measured to be 341mL. Why is benzoic acid used to calibrate a bomb calorimeter? Benzoic acid (C6H5CO2H) is often […]
What elements have the smallest atomic radius?
What elements have the smallest atomic radius? Explanation: Helium has the smallest atomic radius. Which element has the largest atomic radius K or Na? As an example, potassium (K) has a larger average atomic radius (220 pm)than sodium (Na) does (180 pm). The potassium atom has an extra electron shell compared to the sodium atom, […]
What do theories and laws have in common?
What do theories and laws have in common? As previously stated, a scientific theory is a well-substantiated explanation of some aspect of the natural world. A scientific law is simply an observation of the phenomenon that the theory attempts to explain. The theory of gravity is the explanation as to why the apple falls to […]
How can I make my coils spin faster?
Why autonomous systems are important?
Why autonomous systems are important? Advantages of autonomous systems are their ability to go into places and situations where humans cannot. This includes dangerous places, such inspecting inside nuclear reactors to check for faults, and inaccessible places, such as inside aero-engines. What does autonomous mean? 1a : having the right or power of self-government an […]