Your client asks you to construct an accent for his house. You use an iron wire, 0.75m long and 2.75x10^-3 cm^2 in cross - cube of mass 8 kg on one end. On the bottom of the brass cube, you attach a sectional area, and hang a brass similar iron wire and hang another brass cube of mass 7.5 kg. If Young's Modulus of Elasticity for iron is 21x10^10 Pa and that the weight of the iron wires is neglected. For the wire above, determine: (a) tensile stress, (b) the tensile strain, and (c) the elongation.

Q: Find the vector sum of A and B if A is 6.5km, south, and B= 4.0 km, 45 degrees south of east

A: Resultant of two vector can be determined by parallelogram law of vector.

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Q: 11) How fast is the balling moving when it reaches the bottom of the ramp? 4.2 kg sphere 12.2 m 350

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A: Given:

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A:

Q: Vector S has a magnitude of 8 units and makes an angle of 46 degrees with respect to the positive x…

A: Given: Vectors S = 8 units at angle 46o with the positive x axis. T = 6 units at an angle 36°…

Q: 2. Derive an equation for determining the density of a floating/wooden object using Archimedes'…

A: The density ρ of an object of mass m and volume V is given by:

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Q: SITUATION 3: A vertical brass post is 3.75m long and has a diameter of 25 cm. If the brass post is…

A:

Q: Evaluate the given integral. Jx²Inxdx

A:

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A:

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Q: is at station 6 + 780 al on 6 + 800 has an eleva

A: Given Data, Forward tangent of -8% Backward tangent of +5% The curve is 40 m The side is 60 m long…

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A: Let us draw the figure:

Q: For this problem give your answer in [m]. A surveyor measures the distance across a straight river…

A: Visualize the Problem:

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A: (a)i^' is unit vector along x' and j^' is unit vector along y'so resolving them along old x,y axis…

Q: -7x, 9x e (Use a comma to separate answers.)

A:

Q: Express the ff. as a single 2 × 2 matrix. exp (it)

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A:

Q: 3. Consider a thin, spherical shell of radius 12.0 cm with a surface charge density of 0.150 mC/m…

A:

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A: radius of the circular path (r) = 4.90 m

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A:

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A:

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A:

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Q: Sketch a stick diagram for the expression Y = (A+B).C+D and calculate the minimum area.

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Q: 3.1 Assume in the figure below that one charge of -1 nC is at position á-0.1,0,0ñm and a +1 nC…

A: As asked we will only sketch of the electric field & sketch is in accordance with the magnitude.

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.