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Explain why an electromagnet usally has a core of iron or steel
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An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?
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Physics, 23.06.2019 00:30
Two waves maximally constructively interfere at a point in space. among the options below, select the possible value of their phase difference at that point in space.a. zerob. Ļc. Ļ/2d. not determinable by the information provided
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Physics, 23.06.2019 00:40
Aforce of 8,480 n is applied to a chart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?
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Physics, 23.06.2019 02:00
Ideal meters problem. what internal resistance is ideal for a voltmeter? what internal resistance is ideal for an ammeter?
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Explain why an electromagnet usally has a core of iron or steel...
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