Which is the downward pull on an object? The downward pull on an object due to gravity is the object’s . Is mass the scientific term for 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, […]
What are 5 lead properties?
What are 5 lead properties? Its properties include a low melting point; ease of casting; high density; low strength; ease of fabrication; acid resistance; electrochemical reaction with sulfuric acid; chemical stability in air, water, and soils; and the ability to attenuate sound waves, atomic radiation, and mechanical vibration (11). Is lead a metal or nonmetal? […]
Why is the corona hotter?
Why is the corona hotter? Nanojets are thought to be initiated by a process called ‘magnetic reconnection’, where twisted magnetic fields explosively realign. One such reconnection can set off another, resulting in an avalanche of nanojets in the Sun’s corona, which is then thought to generate enough energy to heat the corona. What triggers lightning? […]
What are high level clouds?
What are high level clouds? High-level clouds form above 20,000 feet (6,000 meters) and since the temperatures are so cold at such high elevations, these clouds are primarily composed of ice crystals. High-level clouds are typically thin and white in appearance, but can appear in a magnificent array of colors when the sun is low […]
How do you describe an irregular galaxy?
How do you describe an irregular galaxy? An irregular galaxy is the catchall name given to any galaxy that does not neatly fit into one of the categories of the Hubble classification scheme. They have no defined shape nor structure and may have formed from collisions, close encounters with other galaxies or violent internal activity. […]
Should my skull be bumpy?
What is the relationship between heat work and internal energy?
What is the relationship between heat work and internal energy? The relationship between the internal energy of a system and its heat and work exchange with the surroundings is: E = q + w (The form of work will be restricted to gaseous, PV-type for this discussion.) Interestingly, both q and w are not state […]
Are landfills a problem?
Are landfills a problem? Landfill sites are pretty ugly. And it’s not just the sight of increasing piles of waste that’s the problem. The three most important problems with landfill are toxins, leachate and greenhouse gases. What are the negative effects of landfills? Almost two thirds of landfill waste is biodegradable. This waste rots and […]
Will cats come down from trees on their own?
Will cats come down from trees on their own? Cats’ claws are shaped like fish hooks, and trees are nature’s escape routes for them. They will often climb until they feel safe, then stop and realize they’re stuck. The only safe way for them to get down unaided is to go down backward, which, unsurprisingly, […]