How much energy is in a firework?

How much energy is in a firework? While most real firecrackers are limited by law to 50 milligrams (mg) of gunpowder, the party poppers that are sold in stores are capped out at 16 mg of gunpowder each. Given that gunpowder has a specific energy of 3.0 Megajoules per kilogram, we can calculate that each […]

How long does an order of protection last in NY?

How long does an order of protection last in NY? one year Is verbal abuse a crime in NY? A variety of forms of street harassment are illegal in New York, including verbal harassment, up-skirt photos, indecent exposure, following, groping, and hate crimes. Here are the laws and reporting procedures you need to know. There […]

Is pork done at 170 degrees?

Is pork done at 170 degrees? Safe Cooking Chart for Pork Internal temperature: 160° F (70°C) – medium; 170°F (75°C) – well done. What is the 2 4 Rule? The 2-hour/4-hour rule is a good way to make sure potentially hazardous food is safe even if it’s been out of refrigeration. Remember to add up […]

What are the application of composite materials?

What are the application of composite materials? Composites are ideal for applications in corrosive environments, such as chemical processing plants, pulp and paper converting, oil and gas refineries and water treatment facilities. Common applications include fans, grating, tanks, ducts, hoods, pumps and cabinets. What is an example of a composite material? Composite material Reinforced concrete […]

How can you classify map projections in terms of their distortion characteristics?

How can you classify map projections in terms of their distortion characteristics? A common method of classification of map projections is according to distortion characteristics – identifying properties that are preserved or distorted by a projection. The distortion pattern of a projection can be visualized by distortion ellipses, which are known as Tissot’s indicatrices. What […]

How do metal leaf Electroscopes work?

How do metal leaf Electroscopes work? An electroscope is a device that detects static electricity by using thin metal or plastic leaves, which separate when charged. Electrical charges move to the metal and down to the foil leaves, which then repel each other. Since each leaf has the same charge (positive or negative), they repel […]

Is gold a ferromagnetic metal?

Is gold a ferromagnetic metal? Gold (Au) in its bulk form, like the metal in a wedding ring, is not considered a magnetic material. Technically, it is classified as “diamagnetic”, meaning that it can be repelled by a magnetic field, but cannot form a permanent magnet. Why Fe is ferromagnetic? The popular understanding of a […]

What is the slowest spreading ocean?

What is the slowest spreading ocean? The Gakkel Mid-Ocean Ridge (MOR) is the slowest spreading center on the planet with full-spreading rates between 1.33 cm/yr along the Greenland end to 0.63 cm/yr along the Siberian end. What is the difference between a fast spread and a slow spread? Steep steps in the seafloor that can […]

What can charge an insulator?

What can charge an insulator? A conductor is a substance that allows charge to flow freely through its atomic structure. An insulator holds charge within its atomic structure. Objects with like charges repel each other, while those with unlike charges attract each other. What is difference between conduction and induction? In conduction, the neutral body […]

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