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lana [24]
3 years ago
9

Which of the following statements best describes earths mineral resources

Physics
2 answers:
bulgar [2K]3 years ago
8 0
It is D, you can not replace minerals. This makes them valuable.
prohojiy [21]3 years ago
3 0
It's B. Valuable and non-renewable. Their valuable because they can't be renewed.
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Elastic and gravitational.
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List the types of electromagnetic radiation in order from lowest energy photons to highest energy photons.
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radio waves,X-rays,

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In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. Microwaves (like the ones used in microwave ovens) are a subsection of the radio wave segment of the EM spectrum.

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The Starship Enterprise is powered by combining matter with antimatter. Suppose 1 kg of each are combined and ejected backward a
tino4ka555 [31]

Answer:

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3 0
3 years ago
A student wants to create a 6.0V DC battery from a 1.5V DC battery. Can this be done using a transformer alone
shusha [124]

Answer:

Therefore, we need an invert, and a rectifier, along with the transformer to do the job.

Explanation:

A transformer, alone, can not be used to convert a DC voltage to another DC voltage. If we apply a DC voltage to the primary coil of the transformer, it will act as short circuit due to low resistance. It will cause overflow of current through winding, resulting in overheating pf the transformer.

Hence, the transformer only take AC voltage as an input, and converts it to another AC voltage. So, the output voltage of a transformer is also AC voltage.

So, in order to convert a 6 V DC to 1.5 V DC we need an inverter to convert 6 V DC to AC, then a step down transformer to convert it to 1.5 V AC, and finally a rectifier to convert 1.5 V AC to 1.5 V DC.

<u>Therefore, we need an invert, and a rectifier, along with the transformer to do the job.</u>

8 0
3 years ago
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