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Question: Two identical rooms (as sketched in Figure) are heated differently during wintertime by means of two heat sources of known heat flow rates q1 and q2. The
rooms have identical walls separating the conditioned space from the outside. Heat also flows through the wall separating the two rooms, which is different from the outside walls. Knowing the outside temperature is io, derive the mathematical model of this thermal system where the output amounts are the two room temperatures i1 and i2. Known are the thermal resistances of the outside walls Rth,o, the thermal resistance of the separating wall Rth, and the thermal capacitances of the two rooms Cth, as well as the outdoor temperature io and the two source heat flow rates q1 and q2.
Given an isothermal expansion of gas from 1.0 to 2.0 cubic meters in a piston-cylinder arrangement where pressure varies according to P= 1.2 atm -.062 atm/ m^3 V, How much work was done by the gas
A 1500 kg car moving east at 26 m/s collides with a 1720 kg car moving south at 15 m/s and the two cars stick together.
A proton enters the region between the two plates shown in the figure moving in the x-direction with a speed v = 1.61 106 m/s. The potential of the top plate is Vt = 245 V, and the potential of the bottom plate is Vb = 0 V.
Illustrate how much ice must melt in order to cool the hot water down to this temperature?
There is a square with 4 charges. q3 is 3x10^-6 C and in the top left q4 is -2x10^-6 C and in the top right q2 is 2x10^-6 C and in the bottom left q1 is 4x10^-6 C and in the bottom left The distance between each charge on the outer edge of the squ..
A 0.23 kg billiard ball that is moving at 2.6 m/s strikes the bumper of a pool table and bounces straight back at 2.3 m/s. The collision lasts 0.01 s. What percent of the original energy is left after the collision?
A uniform chain of length L is released from rest on a smooth horizontal table with a portion h of the chain overhanging at the edge of the table. Find the time taken by the chain to slip off the table.
Why are taxes collected, and what role does the government play?
a 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s
A 6.00m long string sustains a three-loop standing wave pattern as shown. The wave speed is 2.00 x 10^2 m/s. What is the frequency of vibration
Water flows at a speed of 1.7 m/s throughout a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a diameter of 14 cm. Treat the water as an idea fluid.
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 32.0 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the gr..
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