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Mechanics | Relativity
Given that the electrolytic conductivity of a solution containing 3g of calcium chloride in 250cm^-3 aqueous solution is 1.6x10^-3 Sm^-1 at 20°C. Calculate the molar conductivity of the solution at 20°C.
Mechanics | Relativity
The work required to compress a gas reversibly according to pV^1.30 = c is 67,790J, if there is no flow. Determine ΔU and Q if the gas is (a) air, (b) methane. For methane, k= 1.321, R=518.45 J/kg., Csubv= 1.6187, csubp= 2.1377 kJ/kg.K.
Mechanics | Relativity
If 10 kg/min of air are compressed isothermally from P1=96 kPa and V1 =7.65 m^ 3/min to P2 =620 kPa , find the work, the change of entropy and the heat for (a) non flow process and b) a steady flow process with v1= 15 m/s and v2 =60 m/s .
Mechanics | Relativity
A man on the bank of the river pulls a boat on water with the rope that makes 30 degrees, with the bank. He exerts a force of 60lbs. What is the useful component of this force?why is it called useful?
Mechanics | Relativity
A jet of water is discharging at a constant rate of 0.06 m 3 /s from the upper tank (Fig. 2). If the jet diameter at
section 1 is 10 cm, what forces will be measured by scales A and B? Assume the empty tank weighs 1335 N, the cross-sectional area of the tank is 0.37 m 2 , h= 30 cm, and H =2.74 m.(density of water at 60°F = 983.2 kg/m)
Mechanics | Relativity
A car travels 25.0 km of a 50.0 km trip at an average speed of 40.0kmh^-1. It travels the second half of its journey at an average speed of 80.0kmh^-1. A truck makes the same trip but spends half of its time at an average speed of 40.0kmh^-1 and the other half of its time at an average speed of 80.0kmh^-1. Which vehicle got there in the shortest period of time?
Mechanics | Relativity
Moment after making the dreaded decision to jump out the door of the airplane, Darin’s 82.5 kg body experiences 118 N of air resistance. Determine Darin’s acceleration at this instant time. HINT. Begin drawing a free body diagram and determine the net force.
Mechanics | Relativity
What is centre of mass of triangle.
Mechanics | Relativity
Explain centre of mass cone.
Mechanics | Relativity
George walks 5.0 km south, 10 km east, 8 km north, and 6.0 km west. Determine the displacement. Both magnitude and direction
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#339914 on Dec 2023
#339914 on Dec 2023