Explain what a spectroscope is and how it works

1 answer:

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A spectroscope is a device used to distribute white light into a spectrum of many different colors. A little prism inside the device divides the light into different colors of light. You look into it, and there will be numbers. The numbers you see will show you the wavelengths of light.

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Heat from Earth's interior causes convection currents in Earth's _________.

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The convection currents would come from the exterior core and they would travel through the mantle and eventually through the core

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Rubber rods charged by rubbing with cat fur repel each other. Glass rods charged by rubbing with silk repel each other. A rubber

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Answer:

C. A rubber rod and a glass rod charged this way have opposite charges on them.

Explanation:

When a rubber rod is rubbed against cat fur, it acquires a negative charge, it becomes negatively charged.

When you then try to bring two rubber rod's together, they repel because like charges repel.

Meanwhile, when you rub a glass rod against silk, it loses electrons to the silk material and becomes positively charged.

When you bring two positively charged glass rod's together, they repel, because like charges repel.

However, when you bring the rubber rod and a glass rod together, the attract each other because unlike/opposite charges attract.

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A particular car engine operates between temperatures of 440°C (inside the cylinders of the engine) and 20°C (the temperature of

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One of the concepts to be used to solve this problem is that of thermal efficiency, that is, that coefficient or dimensionless ratio calculated as the ratio of the energy produced and the energy supplied to the machine.

From the temperature the value is given as

$\eta = 1-\frac{T_L}{T_H}$