A metal bar (23.5 x 10-6oC-1) has a final length of 5.5800 m after its temperature...

A metal bar (23.5 x 10^-6^oC^-1) has a final length of 5.5800 m after its temperature changes from 64.459 ^oF to -27.674 ^oC.

a) Convert the initial temperature to ^oC.

18.03

21.82

20.55

16.59

11.90

26.14

In 100 words or less, explain how to calibrate a new and otherwise unmarked mercury or alcohol filled, glass thermometer.

Expert Solution

genius_generous answered 1 year ago

The temperature , u(x,t), in a metal rod of length L satisfies del u/ del...

The temperature , u(x,t), in a metal rod of length L satisfies del u/ del t = k del squared u / del x squared limit 0 less than or equal to, x less than or equal to L , t greater than or equal to 0 The ends of the rod at x=0 and x=L , are maintained at a constant temperature T not 0 , so that the boundary conditions are u(0, t) =0 u(L, t)...

Thermal properties A bar has an initial length of 100 mm at room temperature of 27oC....

Thermal properties A bar has an initial length of 100 mm at room temperature of 27oC. The tensile test indicates that the bar yields when it reaches is the stress level of 145 MPa and the strain value of 2.071 x 10-3. The bar is later placed in an oven and heated from room temperature to 100 oC. The linear coefficient of thermal expansion of the material is 23 x 10-6 oC-1 at 27oC, and 34 x 10-6 oC-1 at...

Ant on a metal plate. The temperature at a point ( x, y) on a metal...

Ant on a metal plate. The temperature at a point ( x, y) on a metal plate is T(x, y) = 4x2 - 4xy + y2 . An ant on the plate walks around the circle of radius 10 centered at the origin. a) What are the highest and lowest temperatures encountered by the ant? b) Suppose the ant has changed its trajectory and is walking around the circle of radius 5. Is the highest temperature encountered by the ant...

A pure aluminum bar has a diameter of 15 cm and a length of 1.25 m....

A pure aluminum bar has a diameter of 15 cm and a length of 1.25 m. The rod is initially uniform in temperature at 300?C. The bar is now suddenly exposed to a convection environment at 50?C with h = 1250 W/m K. How long does it take the center to cool to a temperature of 80?C? (a) Determine if a lumped capacitance analysis is or is not appropriate. (b) Determine the cooling time assuming the lumped capacitance model is...

A thin, rectangular sheet of metal has mass M and sides of length a and b....

A thin, rectangular sheet of metal has mass M and sides of length a and b. Find the moment of inertia of this sheet about an axis that lies in the plane of the plate, passes through the center of the plate, and is parallel to the side with length b. Express your answer in terms of some or all of the variables M, a, and b Find the moment of inertia of the plate for an axis that lies...

A metal bar of length 30 cm, is initially at 25 oC. Then through an electrical...

A metal bar of length 30 cm, is initially at 25 oC. Then through an electrical wire heat is generated at a rate of 0.5 cal/cm3s. The left end (x = 0 cm ) is contacted with a medium at 10 oC. At the right end there is a heat loss due to the air convection at a flux of 0.6 cal/cm2s. The physical properties are, k = 2 cal/cm oC s, r = 8 g/cm3, Cp = 0.2 cal/g...

A 0.63-m aluminum bar is held with its length parallel to the east-west direction and dropped...

A 0.63-m aluminum bar is held with its length parallel to the east-west direction and dropped from a bridge. Just before the bar hits the river below, its speed is 27 m/s, and the emf induced across its length is 5.5 x 10-4 V. Assuming the horizontal component of the Earth's magnetic field at the location of the bar points directly north, (a)determine the magnitude of the horizontal component of the Earth's magnetic field, and (b) state whether the east...

A 0.70-m aluminum bar is held with its length parallel to the east-west direction and dropped...

A 0.70-m aluminum bar is held with its length parallel to the east-west direction and dropped from a bridge. Just before the bar hits the river below, its speed is 29 m/s, and the emf induced across its length is 7.0 x 10-4 V. Assuming the horizontal component of the Earth's magnetic field at the location of the bar points directly north, (a) determine the magnitude of the horizontal component of the Earth's magnetic field, and (b) state whether the...

A 0.74-m aluminum bar is held with its length parallel to the east-west direction and dropped...

A 0.74-m aluminum bar is held with its length parallel to the east-west direction and dropped from a bridge. Just before the bar hits the river below, its speed is 25 m/s, and the emf induced across its length is 7.9 x 10-4 V. Assuming the horizontal component of the Earth's magnetic field at the location of the bar points directly north, (a) determine the magnitude of the horizontal component of the Earth's magnetic field, and (b) state whether the...

Argon gas is initially at a pressure of 10 bar and temperature of 45oC (state 1),...

Argon gas is initially at a pressure of 10 bar and temperature of 45oC (state 1), while occupying a volume of 0.8 m3 in a frictionless piston-cylinder arrangement. The gas then undergoes a reversible constant volume process to a pressure of 6 bar (state 2), followed by a constant pressure process in which the temperature is restored to 45oC (state 3). a) Sketch the processes on T-s and p-v diagrams b) Assuming perfect gas behaviour determine i) The work done...

Question