What can be used to recover serial number? etching reagent Which chemical helps reveal a damaged serial number? To reveal destroyed serial numbers on weapons made of nonmagnetic materials, such as zinc, aluminum or alloy substances, crime laboratories must still use chemical etching, a process that uses strong acids and typically reveals a serial number […]
What is a circuit chart?
What is a circuit chart? What is a Circuit Diagram? A circuit diagram is a visual display of an electrical circuit using either basic images of parts or industry standard symbols. A schematic style circuit diagram is used to give a visual representation of an electrical circuit to an electrician. What are the two types […]
Why should mass not be represented by an arrow?
Which fossil fuel is the best?
Which fossil fuel is the best? Natural Gas Which fossil fuel is the cleanest burning Why? natural gas What is the most used fossil fuel? Oil How much does burning fossil fuels contribute to global warming? Global carbon emissions from fossil fuels have significantly increased since 1900. Since 1970, CO2 emissions have increased by about […]
Is scattering of light reflection?
Is scattering of light reflection? Scattering and reflection. Both phenomena occur and overlap. The main factor controlling them is particle size: scattering occurs for particles smaller than the wavelength of light, and reflection for bigger ones, but there is overlap. Thus, more blue light than red light is transmitted backwards. What is the means of […]
Is angular velocity affected by radius?
Is angular velocity affected by radius? Linear/tangential velocity, in a circlular path, increases with the increase in radius and decreases with the decrease in radius. Hence, the angular velocity remains the same no matter what the change in radius is(W=V/r). Why is angular momentum always conserved? Objects can change their shape and still conserve angular […]
Is there a weight limit for private pilots?
Is there a weight limit for private pilots? In the US there’s no specific weight limit in the regulations. Instead, they just say that you must be capable of performing the duties of a pilot, e.g. 14 CFR 61.113: A very heavy pilot may be too heavy to fly in some smaller aircraft (including training […]
How many types of erosion are there?
How many types of erosion are there? Like water erosion, there are three different types of wind erosion, surface creep, saltation, and suspension. What is called erosion Class 6? The wearing away of the earth’s surface is called erosion. Explanation: Erosion is the phenomenon of the removal of the top layer of the Earth’s surface […]
How are the circuits wires in houses?
How are the circuits wires in houses? Circuits in houses are generally wired in parallel, which allows you to operate each light or power point independently of the others. How many circuits should a house have? Fifty years ago, a kitchen might have been served by a single electrical circuit, but today, a newly installed […]
What would happen if a gamma ray hit Earth?
What would happen if a gamma ray hit Earth? With the gamma-rays beamed directly at Earth, the radiation would destroy a significant portion of our atmosphere, specifically the ozone layer. The photons streaming from the burst would cause chemical reactions leading to photochemical smog. This would further deplete our protection from cosmic rays. How far […]