Magnetic force on the iron
A permanent magnet can pick up a piece of non-magnetized iron. Provide a step-by-step explanation, by using both words and pictures, of how the magnetic force on the iron outcomes from the interaction among electron spins.
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Write down the symbol for this ion (give the ionic charge as a right superscript and give the symbol for the nucleus). One isotope of a metallic element has mass number 58 and has 33 neutrons in the nucleus. An atomic ion has 23 electrons.
Determine (a) annual percent growth or decay rate, (b) continuous annual percent growth or decay rate, and (c) doubling time or half-life of population of animals which triples in size every five years.
At a temperature of 25 degrees Celsius, the specific heat of hydrogen is 1.43 *10 to the fourth power J/kg*K. When the temperature of a .34 kg sample of hydrogen is to be raided by 25 K, explain how much energy will have to be added to the hydroge
The pure rotational microwave spectrum of HCl has absorption lines at the following wave numbers (in cm-1): 21.19, 42.37, 63.56,84.75, 105.93, 127.12, 148.31, 169.49, 190.68, 211.87, 233.06,254.24, 275.43, 296.62, 317.80, 338.99, 360.18, 381.36, 4
Explain what will be the cause of discrepancy when the experimental freezing point for cyclohexane is found to be ˜ 1°C less than its value listed which is 6.5°C.
A spring having a force constant of 583 N/m is compressed a distance of 61 cm. Determine the resultant raise in the spring's mass?
Determine the number of grams of neon will have the same number of atoms as 1,000 g of bromine if an atom of bromine has a mass about four times greater than that of an atom of neon.
Determine the number of grams of Calcium Sulfate will be formed, suppose the reaction Ca3 (PO4)2 + 3H2SO4 - 3CaSO4 + 2H3PO4 is carried out starting with the 103.0g of Ca3(PO4)2 and 75.0 g of H2SO4.
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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