Are combustion engines more efficient? How efficient are engines? Combustion engines are stupefyingly inefficient. Most diesel engines do not even have a thermal efficiency of 50%. Of every gallon of diesel burned by a combustion engine, less than half of the energy generated becomes mechanical energy. How long will internal combustion engines be around? The […]
What animals can do that humans can t?
What animals can do that humans can t? 10 Incredible Things Animals Can Do That We Can’t 10 See Different Colors. 9 Run On Water. 8 Defy Gravity. 7 Be Immortal. 6 Regenerate. 5 Have 360-Degree Vision. 4 Shape-Shift. 3 Sleep With Half Of Their Brain. Can seals cry? Seals on land look really miserable! […]
Is a piece of information that is used to support a main idea?
Is a piece of information that is used to support a main idea? Evidence. Evidence is any piece of information used to support an idea or argument. Although evidence is not necessarily based in quantifiable fact, it is used to reinforce the idea of an argument, topic sentence, or main idea. When you look for […]
Which best explains why water is able to stick to the side of glass?
Which best explains why water is able to stick to the side of glass? Which best explains why water is able to “stick” to the side of glass? Strong adhesive forces exist between glass and the water molecules. Which statement best describes a true solution? A solution is said to be a true solution if […]
Does energy have momentum?
Does energy have momentum? Light indeed carries energy via its momentum despite having no mass. Public Domain Image, source: Christopher S. Baird. In the above equation, E is the total energy of the particle, p is the momentum of the particle (which is related to its motion), c is the speed of light, and m […]
What is the change in internal energy of the system when no heat is absorbed by the system from the surroundings but work is done by the system what type of wall does the system have?
What is the change in internal energy of the system when no heat is absorbed by the system from the surroundings but work is done by the system what type of wall does the system have? adiabatic What is thermally conducting walls? Consider two systems A and B which are separated by a conducting wall. […]
Is nuclear fusion clean energy?
Is nuclear fusion clean energy? No CO₂: Fusion doesn’t emit harmful toxins like carbon dioxide or other greenhouse gases into the atmosphere. Its major by-product is helium: an inert, non-toxic gas. No long-lived radioactive waste: Nuclear fusion reactors produce no high activity, long-lived nuclear waste. Is nuclear fusion the energy of our future? Fusion power […]
What are the different types of reflections?
What are the different types of reflections? Types of reflection Reflection-in-action and Reflection-on-action. Two main types of reflection are often referred to – reflection-in-action and reflection-on-action. Reflection-in-action. This is the reflection that takes place whilst you are involved in the situation, often a patient interaction. Reflection-on-action. How do you write a good personal reflection? How […]
Why were Russian peasants so poor?
Why were Russian peasants so poor? The reforms in agricultural also disappointed the peasants. By 1900 around 85 per cent of the Russian people lived in the countryside and earned their living from agriculture. The nobility still owned the best land and the vast majority of peasants lived in extreme poverty. Why was there a […]
How do I calculate my daily energy consumption?
How do I calculate my daily energy consumption? Once you have those three bits of info, here’s how to calculate the cost: Calculate the daily energy consumption: (Wattage) x (hours used per day) Divide the answer by 1,000. Calculate the annual use: (Daily energy consumption) x (number of days the appliance is used per year) […]