A vertical solid steel post of diameter d = 27 cm and length L = 3.00 m is required to support a load of mass m = 8000 kg . You can ignore the weight of the post. Take free fall acceleration to be g=9.8m/ s 2 Part A What is the stress in the post? Express your answer using two significant figures. Part B What is the strain in the post? Express your answer using two significant figures. Part C What is the change in the post's length when the load is applied? Express your answer using two significant figures. ΔL Δ L = nothing
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A vertical solid steel post of diameter d = 27 cm and length L = 3.00 m is required to support a load of mass m = 8000 kg . You can ignore the weight of the post. Take free fall acceleration to be g=9...
A vertical solid steel post of diameter d = 22 cm and length L = 2.30...
A vertical solid steel post of diameter d = 22 cm and length L =
2.30 m is required to support a load of mass m = 8200 kg . You can
ignore the weight of the post. Take free fall acceleration to be
g=9.8m/s2.
B. What is the strain in the post?
Express your answer using two significant figures.
C. What is the change in the post's length
when the load is applied?
Express your answer using two significant...
a vertical solid <Ch 11 HW Exercise 11.30 A vertical solid steel post of diameter d...
a vertical solid
<Ch 11 HW Exercise 11.30 A vertical solid steel post of diameter d = 26 cm and length L=2.90 m is required to support a load of mass m = 7500 kg You can ignore the weight of the post Take free fall acceleration to be g = 9.8m/s Part B What is the st Express you Submit X ir 2.90 gnore Part A What is the stress in the post? Express your answer using two significant...
A vertical solid steel post of diameter d = 20 cmand length L = 2.80 m...
A vertical solid steel post of diameter d = 20 cmand length L = 2.80 m is required to support a load of mass m = 8500 kg . You can ignore the weight of the post. Take free fall acceleration to be g=9.8m/s2. A) What is the stree in the post? B) What is the strain in the post? C) What is the change in the post's length when the load is applied? (Express all answers using 2 sigfigs)
A 200-kg chandelier is suspended from vertical steel cable. The cable is 7.8 m long. Assume...
A 200-kg chandelier is suspended from vertical steel cable. The cable is 7.8 m long. Assume a safety factor of 6.5. The elastic modulus for steel is 2.0×1011N/m2, and tensile strength for steel is 5.0×108N/m2. Part A What is the minimum cross-sectional area required of the cable? Express your answer to two significant figures and include the appropriate units. Amin Amin = nothingnothing SubmitRequest Answer Part B How much does the cable elongate? Express your answer to two significant figures...
We usually ignore the kineticenergy of the moving coils of a spring, but let's try...
We usually ignore the kinetic energy of the moving coils of a spring, but let's try to get a reasonable approximation to this. Consider a spring of mass M, equilibrium length L0, and spring constant k. The work done to stretch or compress the spring by a distance L is , where X = L - L0.Part AConsider a spring, as described above, that has one end fixed and the other end moving with speed v. Assume that the speed of points along...
Part B Calculate the load II Review A square steel bar has a length of 2.2...
Part B Calculate the load II Review A square steel bar has a length of 2.2 ft and a 1.5 in by 1.5 in cross section and is subjected to axial compression. Under load, the thickness becomes 1.50032 in . If the modulus of elasticity is E = 2.9x 104 ksi and Poisson's ratio is v = 0.31; what is the magnitude of the load that was applied to the bar? Learning Goal To use Poisson's ratio and Hooke's law...
A conical pendulum is formed by attaching a ball of mass m to a string of length L, then allowing the ball to move in a...
A conical pendulum is formed by attaching a ball of
mass m to a string of length L, then allowing the
ball to move in a horizontal circle of radius r. The
following figure(Figure
1) shows that the string traces out the surface of a cone,
hence the name.Part A: Find an expression for the tension T in the
string.Express your answer in terms of the variables L,m,r and appropriate
constants.Part B: Find an expression for the ball's angular speed?.Express your answer...
Figure < 1 of 1 Consider, for instance, a bar of initial length L and cross-sectional...
Figure < 1 of 1 Consider, for instance, a bar of initial length L and cross-sectional area A stressed by a force of magnitude F. As a result, the bar stretches by AL (Figure 1) Let us define two new terms: • Tensile stress is the ratio of the stretching force to the cross-sectional area: stress = 5 • Tensile strain is the ratio of the elongation of the rod to the initial length of the bar strain= 41 It...
The assembly shown in the figure below consists of a thin rod of length l = 23.9 cm and mass m = 1.20 kg with a solid ball of diameter d = 10.0 cm and mass M = 2.00 kg attached to its top.
The assembly shown in the figure below consists of a thin rod of length l = 23.9 cm and mass m = 1.20 kg with a solid ball of diameter d = 10.0 cm and mass M = 2.00 kg attached to its top. The assembly is free to pivot about a frictionless axle through the bottom of the rod. The assembly is initially vertical and at rest when it starts to rotate clockwise. (a) After the combination rotates through 90...
-3 A tank full of liquid (p-1000 kg/m ,H-10 kg/(m s)) discharges to the atmosphere (K-0) through a smooth pipe of diameter D= 5 cm and variable length L whose outlet section is at a height h=10 m bel...
-3 A tank full of liquid (p-1000 kg/m ,H-10 kg/(m s)) discharges to the atmosphere (K-0) through a smooth pipe of diameter D= 5 cm and variable length L whose outlet section is at a height h=10 m below the surface of the deposit. Between the deposit and the pipe a globe valve is placed in order to control the flow rate and maintain it at a constant value Q-0.01 m /s. Calculate the maximum pipe length beyond which it...
A vertical solid steel post of diameter d = 22 cm and length L =
2.30 m is required to support a load of mass m = 8200 kg . You can
ignore the weight of the post. Take free fall acceleration to be
g=9.8m/s2.
B. What is the strain in the post?
Express your answer using two significant figures.
C. What is the change in the post's length
when the load is applied?
Express your answer using two significant...
a vertical solid
<Ch 11 HW Exercise 11.30 A vertical solid steel post of diameter d = 26 cm and length L=2.90 m is required to support a load of mass m = 7500 kg You can ignore the weight of the post Take free fall acceleration to be g = 9.8m/s Part B What is the st Express you Submit X ir 2.90 gnore Part A What is the stress in the post? Express your answer using two significant...
We usually ignore the kinetic energy of the moving coils of a spring, but let's try to get a reasonable approximation to this. Consider a spring of mass M, equilibrium length L0, and spring constant k. The work done to stretch or compress the spring by a distance L is , where X = L - L0.Part AConsider a spring, as described above, that has one end fixed and the other end moving with speed v. Assume that the speed of points along...
Part B Calculate the load II Review A square steel bar has a length of 2.2 ft and a 1.5 in by 1.5 in cross section and is subjected to axial compression. Under load, the thickness becomes 1.50032 in . If the modulus of elasticity is E = 2.9x 104 ksi and Poisson's ratio is v = 0.31; what is the magnitude of the load that was applied to the bar? Learning Goal To use Poisson's ratio and Hooke's law...
A conical pendulum is formed by attaching a ball of
mass m to a string of length L, then allowing the
ball to move in a horizontal circle of radius r. The
following figure(Figure
1) shows that the string traces out the surface of a cone,
hence the name.Part A: Find an expression for the tension T in the
string.Express your answer in terms of the variables L,m,r and appropriate
constants.Part B: Find an expression for the ball's angular speed?.Express your answer...
Figure < 1 of 1 Consider, for instance, a bar of initial length L and cross-sectional area A stressed by a force of magnitude F. As a result, the bar stretches by AL (Figure 1) Let us define two new terms: • Tensile stress is the ratio of the stretching force to the cross-sectional area: stress = 5 • Tensile strain is the ratio of the elongation of the rod to the initial length of the bar strain= 41 It...
-3 A tank full of liquid (p-1000 kg/m ,H-10 kg/(m s)) discharges to the atmosphere (K-0) through a smooth pipe of diameter D= 5 cm and variable length L whose outlet section is at a height h=10 m below the surface of the deposit. Between the deposit and the pipe a globe valve is placed in order to control the flow rate and maintain it at a constant value Q-0.01 m /s. Calculate the maximum pipe length beyond which it...
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