Category: Physics

Why is it important to dispose of batteries safely? To protect the environment Most batteries contain hazardous materials and can pollute the environment when disposed of in landfills or when thrown out elsewhere. Materials like lead, cadmium and mercury can poison people and animals and contaminate soils and water, and they stay in the environment […]

How can I temporarily fix my car window? Create A Temporary Window On the outside window, stretch a piece of clear tape from the top of the window to the bottom. Continue to layer pieces of tape across the window. A clear, temporary “window” begins to take shape. Repeat until the area is covered. Follow […]

Which best explains how photosynthesis is helpful to humans? Which best explains how photosynthesis is helpful to humans? It reduces the amount of harmful rays released by the sun. It increases the levels of carbon dioxide in the air. What reactants are needed for photosynthesis and respiration? While photosynthesis requires carbon dioxide and releases oxygen, […]

How much water do I put in pressure cooker for meat? When you use a pressure cooker, you need to have enough liquid in the pot for it to come up to pressure and cook the food properly. The rule of liquids in pressure cooking is to always add at least 1 cup of liquid […]

Do necklaces work as pendulums? Pendulums can be made of different materials, some people using a simple necklace with a crystal or charm at the end. Be sure the bob or bobber – or weight on the end – is not too light or too heavy. The best length for the pendulum is six inches. […]

Why does a saucepan have a copper bottom but a plastic handle? The pan is of course to conduct heat evenly! Metal such as copper and aluminium absorb heat quickly which is what you want for cooking , consequently if the handle was made of either metal It would get too hot too hold. Plastic […]

What does AFK stand for? away from keyboard What does IDFK mean? I Don’t Freaking Know What is the meaning of AFK in FF? AFK is an acronym in English that means “away from keyboard”, it is an abbreviation used in certain industries (gaming, technology, etc); to denote that someone is not active or disconnected […]

Why is Greek pottery orange and black? The bright colours and deep blacks of Attic red- and black-figure vases were achieved through a process in which the atmosphere inside the kiln went through a cycle of oxidizing, reducing, and reoxidizing. During the oxidizing phase, the ferric oxide inside the Attic clay achieves a bright red-to-orange […]

What is the speed sound in dry air at 0 0 C? Velocity of Sound in Dry Air Temp °C 0 m/s 1 m/s 20 343.37 343.95 10 337.46 338.06 0 331.45 332.06 -10 325.33 324.71 Will sound travel faster in hot or cold air? Because sound moves faster in warm air than colder air, […]

What are the 3 laws of charges? Based on the same types of experiments like the one you performed, scientists were able to establish three laws of electrical charges: Opposite charges attract each other. Like charges repel each other. Charged objects attract neutral objects. What are the basic laws of electricity? The Fundamental Laws of […]