Category: Physics

When was E mc2 proven? 1905 Does the inertia of a body depend on its energy content? The mass of a body is a measure of its energy-content; if the energy changes by L, the mass changes in the same sepse by L/9 10%, the energy being measured in ergs, and the mass in grammes. […]

What is the downside of having a smart meter? Although smart meters can help you keep track of your energy use, they could also drive up anxiety with elderly or low-income households if they’re constantly reminded of what they’re spending. This could lead to people depriving themselves of adequate heating or lights. How does a […]

What is spatial polarization? The polarization process is likely to deepen urban socio-spatial divisions in two ways: the proportions of low- and high-income neighbourhoods can increase in the poorer and better-off parts of the city, respectively. Also, the social distance between these two parts, in absolute terms, can become more extreme. Do you think globalization […]

What happens if we use white light instead of laser? Answer White light consists of waves of innumerable wavelengths ranging from violet to red color. So if monochromatic light in Young’s double-slit experiment is replaced by white light, then the waves of every wavelength form their separate interference patterns. Which type of light source is […]

How do you find distance rate and time problems? The formula for distance problems is: distance = rate × time or d = r × t. Things to watch out for: Make sure that you change the units when necessary. For example, if the rate is given in miles per hour and the time is […]

How can you tell if your 02 sensor is bad? Signs That Your Oxygen Sensor Is Bad A Glowing Check Engine Light. The bright orange Check Engine light in your dashboard will usually glow if you have a bad oxygen sensor. Bad Gas Mileage. If you’re spending more money than usual on fuel, your vehicle […]

What to do if your neighbors are loud? What you can do about your loud neighbors. Document the offenses. There are a variety of ways you can do this. Give a courtesy knock. A courtesy knock may help. Pay your neighbor a visit. And if a friendly knock doesn’t work, you can pay them a […]

What is the black thing on a guitar called? The Soundhole: Most acoustic guitars have a sound hole in the middle of the guitar, though some guitars may have the sound hole in a different spot or not have one at all. The Bridge: The black part of the guitar on the other end of […]

Will the price of silver go up in 2020? In the long term, Metals Focus sees the silver price hitting a high of US$19 before the end of 2020. For 2020, physical silver investment, such as silver bullion coins and silver bars, could see a third year of growth, rising 16 percent to 215 million […]

Why do I need a Doppler scan? Why do I need a Doppler ultrasound? Your doctor may suggest a Doppler ultrasound exam if you show signs of decreased blood flow in the arteries or veins of your legs, arms, or neck. A reduced amount of blood flow may be due to a blockage in the […]