Category: Physics

Do LED bulbs have capacitors? Capacitors are generally used in LED drivers for smoothening and reducing the ripple coming from the power supply. Selecting the right capacitors for LED lighting systems helps in avoiding flickering, eliminates excessive heat, and ensures longevity of the LED lights. How can I make LED bulb? How to make LED […]

Is witch hazel actually bad for your skin? Overall, witch hazel is proven as safe for the skin. The caveat is that witch hazel, like anything else applied to your skin, may not work for everyone. If you’re trying out witch hazel for the first time, it’s a good idea to test it out in […]

What is the formula for energy change? To calculate an energy change for a reaction: add together the bond energies for all the bonds in the reactants – this is the ‘energy in’ add together the bond energies for all the bonds in the products – this is the ‘energy out’ Is cooking an egg […]

What are the properties of alloy? Alloy steels have a wide range of special properties, such as hardness, toughness, corrosion resistance, magnetizability, and ductility. Nonferrous alloys, mainly copper–nickel, bronze, and aluminum alloys, are much used in coinage. What are advantages of alloys? Enhance tensile strength: Alloy formation increases the tensile strength of the parent metal. […]

What does discoloration of Apple mean? When an apple is cut (or bruised), oxygen is introduced into the injured plant tissue. When oxygen is present in cells, polyphenol oxidase (PPO) enzymes in the chloroplasts rapidly oxidize phenolic compounds naturally present in the apple tissues to o-quinones, colorless precursors to brown-colored secondary products. What is the […]

Does orange juice have a lot of sugar? Summary Orange juice is high in sugar and calories, which may contribute to weight gain and high blood sugar. Drink it in moderation and opt for fresh-squeezed or 100% orange juice whenever possible. How many calories are in an 8 ounce glass of orange juice? 100% Juice […]

Will iPhone 4S work in 2020? You can still use an iPhone 4 in 2020? Sure. Apps are WAY more CPU-intensive than they were back when the iPhone 4 was released. And this, as well as the phone’s limited specs, makes for sluggish performance and dire battery life. How much did an iPhone cost in […]

Which way does current flow in a capacitor? Yes. When a capacitor is charging, current flows towards the positive plate (as positive charge is added to that plate) and away from the negative plate. When the capacitor is discharging, current flows away from the positive and towards the negative plate, in the opposite direction. Why […]

Why are condos more expensive than coops? Condo prices are higher than co-ops, but co-ops require a larger downpayment, higher monthly fees, and a lengthy approval process. Condos generally allow subletting of the apartment, while only some co-ops allow subletting, and the rules are complex. Which would not be a major difference between a coop […]

Can alligator gar live in cold water? They can survive cold water. I have kept the before for an extended time at 8C. I’m not sure however they could survive long much lower than that or with prolonged ice over conditions. Where can you catch an alligator gar? Where to catch Alligator Gar. The Alligator […]