Why does a disc overheat when it collapses? Why did the solar nebula heat up as it collapsed? As the cloud shrank, its gravitational potential energy was converted to kinetic energy and then into thermal energy. What happens when a nebula begins to contract? As the nebula contracts, it spins faster and flattens into a […]
Why efficiency is important in management?
Why efficiency is important in management? Efficiency is important for profitability. Effectiveness is important for growth. We should be documenting our processes and systems, and then we should engage our team in brainstorming ways to do things more efficiently. By increasing efficiency we save both time and money, thus making our businesses more profitable. Why […]
What are the parts of the external ear?
What was Galileo pendulum theory?
What was Galileo pendulum theory? Italian scientist Galileo Galilei was the first to study the properties of pendulums, beginning around 1602. Galileo discovered the crucial property that makes pendulums useful as timekeepers, called isochronism; the period of the pendulum is approximately independent of the amplitude or width of the swing. When was the first clock […]
What is the difference between activation energy and energy barrier?
What is the difference between activation energy and energy barrier? Activation energy Energy must be added to the reactants to overcome the energy barrier, which is recovered when products are formed. The energy barrier is known as Ea, the activation energy. The activation energy is distinct from the ΔG, or free energy difference between the […]
What are two defining characteristics of all waves?
What are two defining characteristics of all waves? Waves have a defined frequency As well as a defined speed, every wave has a frequency. This is the number of wavelengths that travel past a point in 1 second of time. Frequency is measured in hertz (waves per second). Does water absorb radio waves? Microwaves and […]
How do emissions affect the environment?
How do emissions affect the environment? The amount of carbon emissions trapped in our atmosphere causes global warming, which causes climate change, symptoms of which include melting of the polar ice caps, the rising of sea levels, the disturbance of animals’ natural habitats, extreme weather events, and so many more negative side effects that are […]
What is the most flammable wood?
What is the most flammable wood? pine tree Is wood highly flammable? Wood is naturally combustible. This means that buildings with wooden walls, floors and roof are at an increased risk of a fire. Fortunately, however, there is a way to use lumber in a way that still significantly reduces the risk of a fire. […]
Does PG&E do energy audits?
Does PG&E do energy audits? Save energy with a home-energy audit. Do slow cookers use a lot of electricity? Do Slow Cookers Use A Lot Of Electricity? Slow cookers use little electricity, making them energy efficient. Slow cookers, like those from Crock-Pot, use between 75 and 150 watts of electricity on low and between 150 […]
What happened in the Rust Belt?
What happened in the Rust Belt? The Rust Belt is a region of the Northeastern and Midwestern United States that has been experiencing industrial decline starting around 1980. Causes include transfer of manufacturing jobs overseas, increased automation, and the decline of the US steel and coal industries. What caused the decline of the Rust Belt? […]