Category: Physics

Is a family an open or closed system? Family Systems… If a family is permeable and vague boundaries it is considered “open.” Open boundary systems allows elements and situations outside the family to influence it. It may even welcome external influences. Closed boundary systems isolate its members from the environment and seems isolated and self-contained. […]

How does conductivity depend on temperature? The conductivity invariably increases with increasing temperature, opposite to metals but similar to graphite. It is affected by the nature of the ions, and by viscosity of the water. In low ionic concentrations (very pure water), the ionization of the water furnishes an appreciable part of the conducting ions. […]

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 […]

Is H2 more stable than H2O? By sharing even with another atom of the same element, the molecule is more stable than a single atom of that element. The O atom of H2O forms the hydrogen bond with the H atom of the halogenoalkane. Why are molecules more stable than separated atoms? A molecule as […]

What is producer gas formula? Producer gas is a mixture of (1) CO + H2 (2) H2 + CH4 (3) CO + N2 + H2 (4) CO + H2O. Unlike natural gas, producer gas is fuel gas that is made from material such as coal. A combustible mixture of nitrogen, carbon monoxide, and hydrogen gives […]

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 will happen if an ammeter is connected in parallel? A voltmeter is used to measure potential difference across two points in an electrical circuit. When ammeter is connected in parallel to the circuit, net resistance of the circuit decreases. Hence more current is drawn from the battery, which damages the ammeter. Why does Ammeter […]

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 […]

Is tension or compression stronger? Wood is 30% stronger in compression than in tension. Wood is stronger in resisting shear across the grain than it is parallel to the grain. Moisture content and seasoning: New wood, that is wood recently cut down, contains a large amount of moisture (this is known as green lumber). How […]