Category: Physics

Where is gold normally found? Gold is primarily found as the pure, native metal. Sylvanite and calaverite are gold-bearing minerals. Gold is usually found embedded in quartz veins, or placer stream gravel. It is mined in South Africa, the USA (Nevada, Alaska), Russia, Australia and Canada. What are 2 interesting facts about gold? It is […]

How many kg are in a second? Conversion Chart / Flow Rate by Mass Converter, Metric ** kilogram per second: 1….Metric. kilogram per second to tonne per second (t/s) 0.001 kilogram per second to kilogram per hour (kg/hour) 3,600 How do you convert kg S to m3 HR? 1 kg/sec = 4.87 m3/hr. How do […]

Who invented mirror writing? Leonardo da Vinci Why did Leonardo use mirror writing? The purpose of his mirror writing is unknown, but one idea is that it may have kept his hands clean. People who were contemporaries of Leonardo left records that they saw him write and paint left handed. As a lefty, this mirrored […]

How do I calculate the circumference of a circle? To calculate the circumference of a circle, multiply the diameter of the circle with π (pi). The circumference can also be calculated by multiplying 2×radius with pi (π=3.14). What are two formulas for the circumference of a circle? The formula is simply this: C = πd. […]

How do you calculate the force of a moving object? Learning the Formula. Multiply mass times acceleration. The force (F) required to move an object of mass (m) with an acceleration (a) is given by the formula F = m x a. So, force = mass multiplied by acceleration. What is the main force that […]

How many 2 liters do you need for a party of 100? Depending on the length of the party, plan on providing 200 cans or 20 2-liter bottles for 100 guests. If the party will last longer than two to three hours, add an additional serving per guest each hour. How many drinks is 2 […]

How many photons second are emitted by a 100 watt light bulb? The energy of each photon is E=hf=hc/λ. Only 3% of the 100 W power is emitted as light, or 3 W= 3 J/s. The number of photons emitted per second equals the light output of 3 J per second divided by the energy […]

Why does a matchstick catch fire? Stored inside the match head is another chemical called “potassium chlorate”. When it gets hot, it releases a lot of extra oxygen and heat. This makes the match head burn quickly and strongly. When you put it all together – the heat, the fuel, and the oxygen – you […]

Is baking soda mixed with water safe to drink? Baking soda is a good treatment for immediate relief from occasional acid reflux. The recommended dosage for adults is 1/2 teaspoon dissolved in a 4-ounce glass of water. It’s best to sip this drink slowly to avoid side effects like gas and diarrhea. Does baking soda […]

Can you drop someone off your health insurance? A: You may remove family members from your plan at any time. Generally, this happens when they obtain coverage from another source. Call the number on the back of your ID card to remove dependents from your plan. Why Medicare Advantage plans are bad? These are the […]