Physics, 06.11.2019 03:31 meijorjay94p2u2zy
The enthalpy of fusion of mercury is 2.292 kj mol-1 at its normal freezing point of 234.3 k; the change in molar volume on melting is +0.517 cm3 mol-1. at what temperature will the bottom of a column of mercury (mass density 13.6 g cm-3) of height 10 m be expected freeze? the pressure at a depth d in a fluid with mass density rho is rhogd, where g is the acceleration of free fall, 9.81 ms-2.
Answers: 2
Physics, 22.06.2019 01:50
Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.
Answers: 2
Physics, 22.06.2019 10:20
Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
Answers: 1
Physics, 22.06.2019 12:00
If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?
Answers: 1
The enthalpy of fusion of mercury is 2.292 kj mol-1 at its normal freezing point of 234.3 k; the ch...
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