Category: Physics

How can I remember my dreams when I wake up? The best time to try to recall your dreams is in the first 90 seconds after you wake up, before the memory goes away. Loewenberg recommends trying to keep your body in the exact same position that you were in when you woke up, as […]

How do you calculate watts? AC three phase amps to watts calculation formula P(W) = √3 × PF × I(A) × VL-L(V) So watts are equal to square root of 3 times power factor PF times amps times volts: watt = √3 × PF × amp × volt. or. W = √3 × PF × […]

What happens if an atom is not electrically neutral? Atoms which are not electrically neutral are called ions. One can collect electric charge by transferring electrons. Materials with an excess of electrons are negatively charged. Those with a deficiency of electrons are positively charged. What if there is no electron? You would become plasma as […]

What type of fuel can be substituted for an aircraft if the recommended octane is not available? What type fuel can be substituted for an aircraft if the recommended octane is not available? A) The next lower octane aviation gas. B) Unleaded automotive gas of the same octane rating….2.3.2.4.5.A.1. 2.3.2.4.5.A.1 PAR PRG PRH RPA RPG […]

How do I write a reflection? When writing a reflection paper on literature or another experience, the point is to include your thoughts and reactions to the reading or experience. You can present what you observed (objective discussion) and how what you experienced or saw made you feel and explain why (subjective discussion). How do […]

What is the weight of something in water? Weight of object in water = weight of object in vacuum – buoyant force. But Archimedes principle states that the buoyant force = weight of fluid displaced by object. From this volume you can get the mass of water displaced since the density of water is 977kg/m^3. […]

What is the most germicidal wavelength of UV light? 260 to 265 nm What happens if thymine dimers are not repaired? The more you expose your skin to UV light, the more likely you are to get the very unlucky combination of thymine dimers in a cell that are not repaired and lead to cancer […]

Was attacking Pearl Harbor a mistake? According to a 2016 article by retired U.S. Navy Commander Alan D. Zimm, Japanese Captain Mitsuo Fuchida, who led the aerial attack on Pearl Harbor, made a critical mistake by firing two flares, which signaled to his aviators that they had not caught the Americans by surprise. Why was […]

How many miles per gallon does a freight train get? 492 miles How much it costs to run a train? By way of comparison, an electric train which consumes 30 kWh per train-mile at 12¢ per kWh would have a fuel cost of only $3.60 per train-mile and many trains average less. With the proviso […]

Which is the formula for determining mode? Thus, the mode can be found by substituting the above values in the formula: Mode = L + h (fm−f1)(fm−f1)+(fm−f2) ( f m − f 1 ) ( f m − f 1 ) + ( f m − f 2 ) . What is the formula for […]