A block of iron (Fe) has the dimensions (I x b x h) = l × 0.420 dm × 2.656 cm. 1 in = 2.54 cm The density of iron at 20°C is 7.87 x 10 µg/mm³. If this block of iron has 7.213 x 1024 iron atoms, calculate the length (I) in inches (in).

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Q: A piece of an imaginary element (called Imaginium), with dimensions 1.2 mm x 1.2 mm x 1.2 mm, has…

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A: Given: The wavelength of Radiation = 459 nm Work Function of Metal = 4.5 eV

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Q: What units must the constant 0.644 have? = What should be the value of the constant when all units…

A: following expression is given in the question h=0.644k0.67vp0.5 cp0.33D0.5 μ0.17        1unit of…

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Q: Q1/A cube of iron with sides 1 cm is placed on one side in an electrolyte solution for 200 hr. If…

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Q: . The balloon is at a pressure of 10' Pa, and in equilibrium. What is its temperature in degrees C?

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Q: Air flow through a packed bed cylindrical shell to a depth of 3m. If the air flows through a bed of…

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Q: gas has mass ( 2 kg ) and volume ( 0.7 ) and temperature ( 15 ° C ) The gas is heated a constant…

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Q: The radius of Uranium-238 nucleus is about 7.44 x 10-3 pm. Calculate the density of the nucleus (in…

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Q: cohol is 804 kg/m3, what would be the volume

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Principal Quantities and EOS

A physical quantity represents the physical state of a system. It is expressed as the product of a number and unit. The basic quantities used in science are length, mass, and time. The principal quantities are the quantities that are independent of other quantities.