Category: Physics

Is friction a form of mechanical energy? The mechanical energy of the system remains constant provided there is no loss of energy due to friction. The energy would transform to kinetic energy when the speed is increasing. The mechanical energy of the system increases provided there is no loss of energy due to friction. Is […]

What is the ratio of velocity to speed? The displacement of the body in given time is always equal to or less than distance covered, because, velocity is displacement per unit time and speed is distance covered per unit time, therefore, ratio of magnitude of velocity and speed is always equal to or less than […]

What kind of information does a life cycle cost LCC analysis provide? Performing a life-cycle cost analysis (LCC) gives the total cost of a lighting system—including all expenses incurred over the life of the system. What is lowest life cycle cost? Lowest life-cycle cost (LCC) is the most straightforward and easy-to-interpret measure of economic evaluation. […]

Why is frost shattering climate related? Freeze-Thaw Weathering: also called frost-shattering as it occurs in cold climates when temperatures are often around freezing point and where exposed rocks contain many cracks. As the water turns into ice it expands and exerts pressure on the surrounding rock, causing pieces to break off. What is the meaning […]

How strong of a telescope do I need to see Saturn? The rings of Saturn should be visible in even the smallest telescope at 25x [magnified by 25 times]. A good 3-inch scope at 50x [magnified by 50 times] can show them as a separate structure detached on all sides from the ball of the […]

What will be the momentum of a stone having mass of 10 kg? 20 kg m/s Are heavier cars faster? What’s clear is that a lighter car will accelerate more or require less force to accelerate like a heavier car. As the acceleration is slower with a heavier car of the same power, you have […]

Where is the largest copper mine in the world? Chile Does copper ore contain gold? These ore bodies range from around 10 million to >4,000 million tonnes of contained ore, and have a grade of between 0.2% and 5% copper, with gold contents ranging from 0.1 to 1.41 grams per tonne. What are 2 examples […]

Does the gas mixture do work or is work done on it? 1 Expert Answer As the gas heats up, its pressure should rise, which in turn displaces the piston in the outward direction. This is positive work, i.e. work being done by the system. Since the piston moves out, the gas mixture does work […]

What are some examples of liquidity? Ranking of Market Liquidity (Example) Cash. Foreign Currency (FX. The USD is the most widely traded currency in the world, and is involved in over 81% of all forex trading. Guaranteed Investment Certificates (GICs) Government Bonds. Corporate Bonds. Stocks. Commodities (physical) Real Estate. Is there any liquid that doesn’t […]

Did Edison say I have not failed? Thomas Edison was one of the most successful innovators in American history. In response to a question about his missteps, Edison once said, “I have not failed 10,000 times—I’ve successfully found 10,000 ways that will not work.” Have not failed 10000 times I have not failed once I […]