Category: Physics

What is modulation in simple words? Modulation is the process of converting data into radio waves by adding information to an electronic or optical carrier signal. A carrier signal is one with a steady waveform — constant height, or amplitude, and frequency. What are the different types of modulation techniques? Modulation techniques are roughly divided […]

Which filament is used in electrical bulb? tungsten filament How can you tell if a UV bulb is blown? Check the two poles on one end with a ohm meter for continuity and the two poles on the other end the same way. Open or infinite resistance means it is bad. Everything between the two […]

What is coherent FSK? A synchronous FSK signal which has a shift in Hertz equal to an exact integral multiple (n = 1, 2,…) of the keying rate in bauds, is the most common form of coherent FSK. Coherent FSK is capable of superior error performance but noncoherent FSK is simpler to generate and is […]

What is the role of oxygen and carbon dioxide on our planet? Carbon dioxide is an important greenhouse gas that helps to trap heat in our atmosphere. Without it, our planet would be inhospitably cold. Respiration, the process by which organisms liberate energy from food, emits carbon dioxide. When you exhale, it is carbon dioxide […]

Which of the following is an balanced equation? Balanced chemical equation is given as following: C2​H5​OH(ℓ)+3O2​(g)⟶2CO2​(g)+3H2​O(ℓ) What type of reaction is Fe cl2? FeCl 2 is a reducing agent, FeCl 2 is an oxidizing agent. This is a precipitation reaction: Fe is the formed precipitate. This is a gas evolution reaction, Cl 2 is the […]

What is the net force on the apple when you release it to fall in the absence of air resistance? gravitational force Which of the following objects is considered to be in free fall? Which of the following objects is considered to be in free fall? A hammer that is tossed upward by an astronaut […]

Why do so many people struggle with physics? Why do so many students struggle with physics? Physics is often contrary to common sense and everyday experience. Consequently people learn and know a lot of stuff that is just wrong. They can be reluctant to let go of these wrong ideas. What jobs pay 250k a […]

How long should 50 gallons of hot water last? 17 minutes How can you tell when a hot water heater is full? Turn off the drain valve once the water runs completely clear. Let your water tank fill up. You’ll know when your water tank is full when the hot water tap, which you turned […]

What happens if there is no air pressure? So, all your body fluids would freeze. When your skin was stretched to the max, it would burst like a balloon, and all the water inside your body (blood is mostly water) would come boiling out because there is no air pressure, but space is so cold […]

How do you reduce body fat? Here are 14 of the best ways to burn fat quickly and promote weight loss. Start Strength Training. Follow a High-Protein Diet. Squeeze in More Sleep. Add Vinegar to Your Diet. Eat More Healthy Fats. Drink Healthier Beverages. Fill up on Fiber. Cut Down on Refined Carbs. What is […]