Is mass equal to weight? In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities. In scientific contexts, mass is the amount of “matter” in an object (though “matter” may be difficult to define), whereas weight is the force exerted on […]
How does Mercury retrograde affect me?
How does Mercury retrograde affect me? Expect to have more or less energy than you’re used to, particularly of the nervous variety. January 2021’s Mercury retrograde will either sap you of your usual zest and leave you feeling lethargic, or fill you with chaotic, scattered energy that might have you feeling restless, unfocused and anxious. […]
What are the 8 parts of a circle?
What are the 8 parts of a circle? The following figures show the different parts of a circle: tangent, chord, radius, diameter, minor arc, major arc, minor segment, major segment, minor sector, major sector. How do you describe the radius? a straight line extending from the center of a circle or sphere to the circumference […]
Which is the best description of an alpha particle?
Which is the best description of an alpha particle? Alpha particle, positively charged particle, identical to the nucleus of the helium-4 atom, spontaneously emitted by some radioactive substances, consisting of two protons and two neutrons bound together, thus having a mass of four units and a positive charge of two. What is the symbol of […]
When did Catholics accept evolution?
When did Catholics accept evolution? 1950 Do Catholics believe in cremation? The Vatican announced Tuesday that Catholics may be cremated but should not have their ashes scattered at sea or kept in urns at home. According to new guidelines from the Vatican’s doctrinal office, cremated remains should be kept in a “sacred place” such as […]
Why is iron so important?
Why is iron so important? Iron is a mineral that the body needs for growth and development. Your body uses iron to make hemoglobin, a protein in red blood cells that carries oxygen from the lungs to all parts of the body, and myoglobin, a protein that provides oxygen to muscles. Your body also needs […]
Why does oxygen production stop without light?
Why does oxygen production stop without light? Plants produce oxygen as a waste product of making sugar using sunlight, carbon dioxide, and water. If a plant needs energy, but doesn’t have sunlight, then it can burn the sugar that it made back when it had sunlight, and doing so requires oxygen. What is an important […]
What is the importance of force?
Is height positive or negative?
Is height positive or negative? An object’s height is a property of that object and has nothing whatsoever to do with the object’s motion. It’s correct to speak of the object’s displacement when describing motion. “Negative height” is always a meaningless term. Without specifying a coordinate system, “negative displacement” is almost as useless. Can work […]
Do you drown slower in salt water?
Do you drown slower in salt water? There is also a discrepancy between the time it takes to drown in the different liquids as well. The time it takes to drown in saltwater is between 5-30 minutes, while with fresh water, it only takes between 5-20 minutes. What happens if you drown in saltwater? “In […]