How fast can you go in a neighborhood? The speed limit in the residential or business areas is 25 mph unless otherwise posted. A safety zone is an area of the road where street cars or trolleys are sharing the road with you. What speed do you go if there is no sign? They are […]
What is the melting point of water?
What is the melting point of water? 0 °C Why water has high boiling point and freezing point? So despite its small molecular weight, water has an incredibly big boiling point. This is because water requires more energy to break its hydrogen bonds before it can then begin to boil. The same concept is applied to […]
What are the unintended consequences of technology?
What are the unintended consequences of technology? Below are 5 examples of the unintended consequences that occur when technology collides with society. Data Governance and Privacy. Human Capital and the Need for STEM Talent. Fake News — Deep Fakes — AI. Global Governance. Risk-Taking Investments of the Future. What statement describes the biggest problem associated […]
What are 5 precautions you can practice to be safe at home?
What are 5 precautions you can practice to be safe at home? Educate yourself with these safety tips about choking hazards, and take measures to keep your family safe. Inspect toys. Regularly inspect toys for any loose parts. Keep choking hazards out of reach. Be sure to keep small, hard foods like nuts or candies […]
What is the relationship between wavelength and speed?
What is the relationship between wavelength and speed? Speed = Wavelength x Wave Frequency. In this equation, wavelength is measured in meters and frequency is measured in hertz (Hz), or number of waves per second. Therefore, wave speed is given in meters per second, which is the SI unit for speed. What is the longest […]
How do printers use static electricity?
How do printers use static electricity? Photocopiers. This flow chart outlines how a photocopier works. Ink jet printers use static electricity to guide a tiny jet of ink to the correct place on the page. Laser printers work in a similar way. How does aluminum foil make static electricity? Electricity experiment for kids instructions: Cut […]
Can any human see infrared?
Can any human see infrared? Infrared waves are a portion of the light spectrum that follows red. They have longer wavelengths than visible light, ranging from 700 nanometers to one millimeter. This renders them invisible to humans in almost all conditions. What does the red light on a security camera mean? If it’s an infrared […]
What is the difference between boron and silicon?
What is the difference between boron and silicon? Boron is exclusively found in the mineral fraction of bone. Silicon is distributed equally in the mineral and collagen fractions. Data suggest boron and silicon have different biological effects on bone. Silicon loading into bone mineral may be influenced by nutritional factors. What is boron used for? […]
How long is a freight train allowed to be?
How long is a freight train allowed to be? According to data that two Class I railroads provided to us, their average train length increased over the 10-year period of 2008 through 2017 by about 1,500 feet for one railroad (from about 6,000 to 7,500 feet, or up to about 1.4 miles) and about 1,200 […]
What would be the path of reflected light if an incident ray passes through focus?
What would be the path of reflected light if an incident ray passes through focus? An incident ray passing through the focus will be reflected parallel to the principal axis. Why the light ray retraces its path when it passes through Centre of curvature? Answer: The reason for light falling on the centre of curvature […]