physics

posted by .

A strip of rubber originally 75 mm long is stretched until it is 100 mm long.

a.What is the tensile strain

b.Why has the answer no units?

c.The greatest tensile stress which steel of a particular sort of a particular sort can withstand without breaking is about 10>9 N m>-2.A wire of cross-sectional area 0.01 mm>2 is made of this steel. What is the greatest force that it can withstand?

d.Find the minimum diameter of an alloy cable, tensile strength 75 MPa, needed to support a load of 15 kN.

e.Calculate the tensile stress in a suspension bridge supporting cable, of diameter of 50 mm, which pulls up on the roadway with a force of 4 kN.

F.Calculate the tensile stress in a nylon fishing line of diameter 0.36 mm which a fish is pulling with a force of 20 N.

g.A large crane has a steel lifting cable of diameter 36 mm. The steel used has a Young modulus of 200 GPa.When the crane is used to lift 20 kN, the unstretched cable length is 25.0 m. Calculate the extension of the cable

• physics -

Actually I think it is your turn. I already know how to do these and have set up several for you. They are all Pretty much the same.

• physics -

can u help me damon?

Similar Questions

1. Design of suitable pin size

Appreciate if someone can take the time to check my answers to the following question. If wrong, could you point me in the right direction. A round bar, 800 mm long, CSA 15 mm^2 experiences an applied tensile load of 6 kN and stretches …
2. physics

According to one set of measurements, the tensile strength of hair is 196 MPa, which produces a maximum strain of 0.400 in the hair. The thickness of hair varies considerably, but let's use a diameter of 50.0 u(mu)m . What is the magnitude …
3. mechanics of materials

A cylindrical tank with flat endplates is constructed from two sections that are welded together circumferentially.The outer diameter of the tank is 1.20, and the wall of the tank is 20.0 mm thick and the mamimum internal pressure …
4. mechanics of materials

A cylindrical tank with flat endplates is constructed from two sections that are welded together circumferentially.The outer diameter of the tank is 1.20, and the wall of the tank is 20.0 mm thick and the mamimum internal pressure …
5. mechanical properties of materials

A cylindrical tank with flat endplates is constructed from two sections that are welded together circumferentially.The outer diameter of the tank is 1.20, and the wall of the tank is 20.0 mm thick and the mamimum internal pressure …
6. mechanics of materials

A cylindrical tank with flat endplates is constructed from two sections that are welded together circumferentially.The outer diameter of the tank is 1.20, and the wall of the tank is 20.0 mm thick and the mamimum internal pressure …
7. Physics(Stress & Strain)

1) Calculate the tensile stress in a 33.000mm diameter rod subjected to a pull of 30.000kN. ANS= MPa (Round to 3 decimal places) Diameter = 33.000mm = 0.033m 30.000kN = 30000N Area = pi*d^2/4 = 3.1416 * 0.033^2/ 4 = 3.1416 *0.001089/ …
8. Pyhsics(Stress&Strain)

1) Calculate the tensile stress in a 33.000mm diameter rod subjected to a pull of 30.000kN. ANS= MPa (Round to 3 decimal places) Diameter = 33.000mm = 0.033m 30.000kN = 30000N Area = pi*d^2/4 = 3.1416 * 0.033^2/ 4 = 3.1416 *0.001089/ …
9. Material Sciences

A steel bar of length L and cross-sectional area A is fitted between rigid supports. Write an expression for the stress in the bar when the temperature is raised by an amount ΔT. Write your answer in terms of α,E and ΔT. …
10. mechanical

A cylindrical tank with flat endplates is constructed from two sections that are welded together circumferentially.The outer diameter of the tank is 1.20, and the wall of the tank is 20.0 mm thick and the mamimum internal pressure …

More Similar Questions