what is the answer? the answer was NOT option "A". urgent
Homework Answers
Young modulus is fundament property of a material and is independent of geometry of substance.
answer The Young's modulus wouldn't change
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what is the answer? the answer was NOT option "A". urgent
Question 25 1 pts Arod...
Question 4 1 pts A wire made from a composite material is shaped into a cylinder...
Question 4 1 pts A wire made from a composite material is shaped into a cylinder and is stretched by a machine pulling in opposite directions at the two ends of the wire. The wire has an initial length of 1.20 m and an initial cross-sectional area of 9.00 x 10-6m2. If a force of 450 N stretches it by 2.1 mm and the wire returns to its original shape after being stretched, what is the Young's Modulus of the...
1 pts A tensile stress of 50 kPa (1 kPa 1000 N/m) acting on 20-cm-long muscle...
1 pts A tensile stress of 50 kPa (1 kPa 1000 N/m) acting on 20-cm-long muscle stretches the muscle by 1 mm. what is the Young's modulus for this muscle? O10,000 kPa We must know cross-sectional area (or diameter) of muscle to find this. 250 kPa O 1,000 kPa 1 pts Question 3 The quadriceps the biceps muscle in the upper arm. Assuming that Young's elastic modulus is the same of both muscles, if the same tensile force were applied...
I just don't know the 10.2 10.1 The elasticity of a cylindrical sample of an unknown...
I just don't know the 10.2
10.1 The elasticity of a cylindrical sample of an unknown material is to be tested. The sample is 40 cm long and has a cross sectional area of 2.5 cm2. The sample is hung vertically and a 50 kg weight is attached to its free end. It is found that the sample stretches to a length of 40.1 cm. (a) What is the tensile stress on the sample? (b) What is the tensile strain?...
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...
please answer #1 answers are in photo below questions. please solve 1. (20 pts.) The truss structure shown has 3 members: BD, CD and BC. The value of EA (where E-Young's modulus and A-cross...
please answer #1 answers are in photo below questions. please
solve
1. (20 pts.) The truss structure shown has 3 members: BD, CD and BC. The value of EA (where E-Young's modulus and A-cross-sectional area) for each of the members is 200 x 103 [kN]. (1) Determine the support reactions at B andCt (2) Determine the vertical displacement of the joint D, "D, (3) Determine the horizontal displacement of the joint D, uph. 0 30° 10 kN 2.13mm 2. (20...
D Question 25 1 pts Which of the following would result in an increase in equilibrium...
D Question 25 1 pts Which of the following would result in an increase in equilibrium price and an ambiguous change in equilibrium quantity? O a decrease in supply and demand O a decrease in supply and an increase in demand O an increase in supply and a decrease in demand O an increase in supply and demand
Problem 4: (Robot strength scaling effects) - all students, G-15 pts- UG 25 pts 1) Consider...
Problem 4: (Robot strength scaling effects) - all students, G-15 pts- UG 25 pts 1) Consider a four legged "microrobot" consisting of a cubic body, and four single dimensional "legs" arranged in the corners as shown in Figure 1. Assume that the legs are passive, e.g. they flex to support the weight of the robot (Figure 1 shows the robot at the moment it is placed on the ground). Assume that the dimensions of the legs and body are proportional,...
Question 14 1 pts A cylinder's radius is doubled and its height is tripled. What will...
Question 14 1 pts A cylinder's radius is doubled and its height is tripled. What will be the effect on the cylinder's lateral surface area and volume? The cylinder's lateral surface area will be increased by a factor of 12, and its volume will be increased by a factor of 6. The cylinder's lateral surface area will be increased by a factor of 18, and its volume will be increased by a factor of 6. The cylinder's lateral surface area...
Question 1 10 pts A 70,0 Kg person on a parachute is descending with a terminal...
Question 1 10 pts A 70,0 Kg person on a parachute is descending with a terminal velocity of 8.00 m/s. The person tries to avoid leg injury after touch down by crouching down by 60.0 cm. Calculate the total stress on leg bones if the effective cross sectional area of bones is 6 cm? Assume the breaking stress of the bone is 1.00 x 10'dyn/cm2, and the Young's modulus is 14.0x1010 dyn/cm² Note that: 10^2 is same as 102 3.1...
homework due soon !! Question 3 25 pts A current is spread uniformly over the cross...
homework due soon !!
Question 3 25 pts A current is spread uniformly over the cross sectional area of a hollow infinite cylindrical shell with inner radius a and outer radius b. Find the magnitude of the magnetic field in the regions a) r<a (5 pts) b) a <r<b (15 pts) c) b<r (5 pts) I O a b
Question 4 1 pts A wire made from a composite material is shaped into a cylinder and is stretched by a machine pulling in opposite directions at the two ends of the wire. The wire has an initial length of 1.20 m and an initial cross-sectional area of 9.00 x 10-6m2. If a force of 450 N stretches it by 2.1 mm and the wire returns to its original shape after being stretched, what is the Young's Modulus of the...
1 pts A tensile stress of 50 kPa (1 kPa 1000 N/m) acting on 20-cm-long muscle stretches the muscle by 1 mm. what is the Young's modulus for this muscle? O10,000 kPa We must know cross-sectional area (or diameter) of muscle to find this. 250 kPa O 1,000 kPa 1 pts Question 3 The quadriceps the biceps muscle in the upper arm. Assuming that Young's elastic modulus is the same of both muscles, if the same tensile force were applied...
I just don't know the 10.2
10.1 The elasticity of a cylindrical sample of an unknown material is to be tested. The sample is 40 cm long and has a cross sectional area of 2.5 cm2. The sample is hung vertically and a 50 kg weight is attached to its free end. It is found that the sample stretches to a length of 40.1 cm. (a) What is the tensile stress on the sample? (b) What is the tensile strain?...
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...
please answer #1 answers are in photo below questions. please
solve
1. (20 pts.) The truss structure shown has 3 members: BD, CD and BC. The value of EA (where E-Young's modulus and A-cross-sectional area) for each of the members is 200 x 103 [kN]. (1) Determine the support reactions at B andCt (2) Determine the vertical displacement of the joint D, "D, (3) Determine the horizontal displacement of the joint D, uph. 0 30° 10 kN 2.13mm 2. (20...
D Question 25 1 pts Which of the following would result in an increase in equilibrium price and an ambiguous change in equilibrium quantity? O a decrease in supply and demand O a decrease in supply and an increase in demand O an increase in supply and a decrease in demand O an increase in supply and demand
Problem 4: (Robot strength scaling effects) - all students, G-15 pts- UG 25 pts 1) Consider a four legged "microrobot" consisting of a cubic body, and four single dimensional "legs" arranged in the corners as shown in Figure 1. Assume that the legs are passive, e.g. they flex to support the weight of the robot (Figure 1 shows the robot at the moment it is placed on the ground). Assume that the dimensions of the legs and body are proportional,...
Question 14 1 pts A cylinder's radius is doubled and its height is tripled. What will be the effect on the cylinder's lateral surface area and volume? The cylinder's lateral surface area will be increased by a factor of 12, and its volume will be increased by a factor of 6. The cylinder's lateral surface area will be increased by a factor of 18, and its volume will be increased by a factor of 6. The cylinder's lateral surface area...
Question 1 10 pts A 70,0 Kg person on a parachute is descending with a terminal velocity of 8.00 m/s. The person tries to avoid leg injury after touch down by crouching down by 60.0 cm. Calculate the total stress on leg bones if the effective cross sectional area of bones is 6 cm? Assume the breaking stress of the bone is 1.00 x 10'dyn/cm2, and the Young's modulus is 14.0x1010 dyn/cm² Note that: 10^2 is same as 102 3.1...
homework due soon !!
Question 3 25 pts A current is spread uniformly over the cross sectional area of a hollow infinite cylindrical shell with inner radius a and outer radius b. Find the magnitude of the magnetic field in the regions a) r<a (5 pts) b) a <r<b (15 pts) c) b<r (5 pts) I O a b
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