ZuoTi.Pro
Question

An elliptical hair that is 80µ by 120µ in minor and major diameters that is 10...

An elliptical hair that is 80µ by 120µ in minor and major diameters that is 10 cm long is extended to 10.07 cm by a weight of 25 grams. What is Young’s modulus in GPa?

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Solution:

Diameter = 80 x 10^-6 m => radius = 40 x 10^-6 m

Young's modulus = stress/strain

=> Y = (FL/ALc)

Here;

Lc :change in length

L : initial length

hence;

Y = (0.025 x 9.81) x0.1 / pi x (40 x 10^-6)^2 x 0.0007

=> Y = 6.97 x 10^9 Pa   

=> Y = 6.97 Gpa or 7 Gpa (approx.)

0 0
Add a comment
Know the answer?
Add Answer to:
An elliptical hair that is 80µ by 120µ in minor and major diameters that is 10...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • If the modulus of elasticity of an elliptical hair is 3.75 GPa. The dimensions of the...

    If the modulus of elasticity of an elliptical hair is 3.75 GPa. The dimensions of the hair are A = 40μ, B=30 μ. The stress at which a hair breaks is called the breaking stress. Suppose this hair broke under a load of 88 grams. What was the breaking stress?

  • The volume of an elongated spheroid is where X and Y are minor and major diameters,...

    The volume of an elongated spheroid is where X and Y are minor and major diameters, respectively. If X and Y are statistically independent random variables with means Ax= 10 cm, μY-15 cm, and standard deviations αχ-2 cm, σΥ-3 cm, find first-order approximations of the mean and standard deviation of S: (a) using the shortcut for products. (b) repeat the evaluation of the mean and standard deviation of S if X and Y are not statistically independent and ρΧΥ-0.7

  • An eight-turn coil encloses an elliptical area having major axis of 40.0 cm and a minor...

    An eight-turn coil encloses an elliptical area having major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the plane of the page and has a 6.00-A current flowing clockwise around it. If the coil is in a uniform magnetic field or 2.00 × 10−4 T directed toward the right of the page, what is the magnitude of the torque on the coil? [Hint: The area of an ellipse is A = πab where...

  • An eight-turn coil encloses an elliptical area having a major axis of 40.0 cm and a...

    An eight-turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm (see figure). The coil lies in the plane of the page and carries a clockwise current of 6.40 A. If the coil is in a uniform magnetic field of 1.96 10-4 T directed toward the left of the page, what is the magnitude of the torque on the coil? Hint: The area of an ellipse is A = πab,...

  • A 3-turn coil encloses an elliptical area having a major axis of L = 42.0 cm...

    A 3-turn coil encloses an elliptical area having a major axis of L = 42.0 cm and a minor axis of W = 28.9 cm, as seen in the figure. The coil lies in the plane of the page and has an I = 5.65 A current flowing clockwise in it. If the coil is in a uniform magnetic field of B = 1.62×10-4 T, directed toward the left of the page, what is the magnitude of the torque on...

  • H+ А. B + C -10°C 25°C major minor 100 : 1 D + E minor...

    H+ А. B + C -10°C 25°C major minor 100 : 1 D + E minor major 25 75 Type in what is the chemically controller intermediate And what is the thermodynamic ally controlled intermediate And explain

  • f An eight turn coil encloses an elliptical area having a major axis of 40.0 om...

    f An eight turn coil encloses an elliptical area having a major axis of 40.0 om and a minor axis of 30.0 cm (Fig. P19.23). The coil lies in the plane of the page and has a 6.10 A current flowing clockwise around it. If the coil is in a uniform magnetic field of 2.08 x 10-4 T, directed toward the left of the page, what is the magnitude of the torque on the col? (Hint: The area the semimajor...

  • K W A 5-turn coil encloses an elliptical area having a major axis of L =...

    K W A 5-turn coil encloses an elliptical area having a major axis of L = 40.2 cm and a minor axis of W = 31.0 cm, as seen in the figure. The coil lies in the plane of the page and has an I = 5.94 A current flowing clockwise in it. If the coil is in a uniform magnetic field of B = 1.89x10-4 T, directed toward the left of the page, what is the magnitude of the...

  • 1) The Giant ‘Darwin’s bark spider’ (Caerostris darwini), from Madagascar spins huge capture webs that can...

    1) The Giant ‘Darwin’s bark spider’ (Caerostris darwini), from Madagascar spins huge capture webs that can even cross small streams (No one really knows how they do it). A web strand 10 µ in Diameter that is 10 cm long will extend to 10.1 cm under a 0.85 gram load. What is Young’s Modulus in GPa? 2) The typical break stress for a hair is about 250 MPa. Suppose we had a giant circular hair that was 1 inch (2.54...

  • An eight-turn coil encloses an elliptical area having a major axis of 40.0 cm and a...

    An eight-turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm (see figure). The coil lies in the plane of the page and has a 6.30-A current flowing clockwise around it. If the coil is in a uniform magnetic field of 2.10 x 104 T directed toward the left of the page, what is the magnitude of the torque on the coil? Hint: The area of an ellipse is A...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT