A nylon string on a tennis racket is under a tension of 215 N. Part A If its diameter is 1.05 mm, by how much is it lengthened from its untensioned length of 30.0 cm ? Use ENylon = 5.00 × 10⁹ N/m². AL || V ΑΣΦ t
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- An automobile tire is shown in the figure below. The tire is made of rubber with a uniform density of 1.10 x 103 kg/m3. The tire can be modeled as consisting of two flat sidewalls and a tread region. Each of sidewalls has an inner radius of 16.5 cm and an outer radius of 30.5 cm as shown, and a uniform thickness of 0.620 cm. The tread region can be approximated as having a uniform thickness of 2.50 cm (tha inner radius is 30.5 cm and outer radius is 33.0 cm as shown) and a width of 19.6 cm. What is the moment of inertia (in kg · m2) of the tire about an axis perpendicular to the page through its center? Sidewall 33.0 cm 16.5 cm 30.5 cm Tread kg • m2Consider the following section of pipe. The velocity of water (Pwater h₁ m S V₁ = 2.9 h₁ = 3.2 m V₂ = 6.7 h₂ = 1.9 m m S Point 1 = 1000 kg ) and height are given for two different points in the pipe. Use this information to answer the following questions. m What is the ratio of the cross-sectional area at point 1 to the cross-sectional area at point 2? A₁ A₂ What is the difference in pressure between points 1 and 2? (Find P2 - P₁. Include a negative sign if that's what you calculate.) P2 - P1 = Pa Which direction is the water flowing through the pipe? Point 2 h₂Calculate the force (in N) a piano tuner applies to stretch a steel piano wire 7.30 mm, if the wire is originally 0.860 mm in diameter and 1.35 m long. Young's modulus for steel is 210 x 109 N/m2. (No Response)N
- A helium balloon (in the shape of a sphere) has radius 7.10 m. For the density of air, please use 1.29 kg/m^3, and for Helium, use .179 kg/m^3 Part A How much additional mass (payload) could this balloon lift? You should assume the balloon's skin, plus other parts of the balloon's structure have a total mass of 900 kg. Note however that this number does NOT yet include the mass of the helium filling the balloon, which you will need to account for! Express your answer using two significant figures. ▸ View Available Hint(s) m = for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A Submit Constants kgE 2. What is the smallest number of whole logs (density = 765 kg/m³, radius = 0.084 m, length = 3.27 m) that can be used to build a raft that will carry 6 people, each of whom has a mass of 80.0 kg? logs MAR 2 27 888 F4 R % 5 T G tv 6 MacBook Air & 7 H U 8 A 9 DD W F10 zoom X KL K P by mi 04 M quies or rne puffer sSuppose a piano tuner stretches a steel piano wire 5.5 mm. The wire was originally 0.825 mm in diameter, 1.27 m long, and has a Young's modulus of 2.10 × 1011 N/m2. l0 = 1.27 ml = 5.5 mmd = 0.825 mm Calculate the force a piano tuner applies to stretch the steel piano wire in Newtons. F =
- Please answer it within 30 minutes.I will upvote! Problem: An artist creates a solid sculpture made from 8.30 kg of tin. She wishes to create an identical sculpture, using the same mold used to make the original, out of solid lead. What is the mass (in kg) of the lead sculpture? (The density of tin is 7.26 ✕ 103 kg/m3, and that of lead is 11.30 ✕ 103 kg/m3.)When water freezes, it expands by about 9.00%. What would be the pressure increase inside your automobile's engine block if the water in it froze? (The bulk modulus of ice is 2.00 x 109 N/m2.) a. 1.8 x 10^8 N b. 1.8 x 10^8 Pa c. 2.22 x 10^10 N d. 2.22 x 10^10 Pa