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 […]
Is it bad to be emotionally dependent?
Is it bad to be emotionally dependent? Though emotional dependence stems from a lack of self-esteem, it’s also a self-esteem destroyer of its own, undermining our confidence subtly and over time. When we become too dependent emotionally on our spouse or partner, we run the risk of losing the person that we love by losing […]
Is atomic nucleus positive or negative?
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 […]
Can a vector has infinite components?
Can a vector has infinite components? A vector can be split into infinite components (but only 3 orthogonal ones) Are vectors one dimensional? Yes. Not only are one dimensional vectors a thing, “zero dimensional” vectors are too! An example of a one dimensional vector would just be any real number, as you observed. How do […]
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. […]
Do elements in Group 1 gain or lose electrons?
Do elements in Group 1 gain or lose electrons? All Group 1 atoms can lose one electron to form positively charged ions. For example, potassium atoms do this to form ions with the same electron configuration as the noble gas argon. Group 2 atoms lose two electrons to form positively charged ions. Most elements in […]
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 is a good question to ask about space?
What is the potential energy at the top of the hill?
What is the potential energy at the top of the hill? The amount of potential energy is dependent upon mass and height and is found using the equation PE=m*g*h where g is the acceleration of gravity (approximated here to be 10 m/s/s). For a 50-kg sledder on top of a 4.0-meter high hill, the potential […]