A copper wire of length 1 meter, cross sectional area 7.1 X 10‑6 m2 and Young’s modulus 11 X 1010 N/m2 has a mass load hung on it. If its increase in length is 1 mm, what is the value of the mass?
400kg
80kg
800kg
40kg
200kg
A copper wire of length 1 meter, cross sectional area 7.1 X 10‑6 m2 and Young’s...
A copper wire of length 1 meter, cross sectional area 7.1 X 10‑6 m2 and Young’s modulus 11 X 1010 N/m2 has a mass load hung on it. If its increase in length is 1 mm, what is the value of the mass? a) 40kg b) 80kg c) 200kg d) 400kg e) 800kg Please help me. Thank you
A 205-kg load is hung on a wire of length of 4.30 m, cross-sectional area 2.00 10-5 m2, and Young's modulus 8.00 1010 N/m2. What is its increase in length?
1. A wire 2.0 m long and cross sectional area of 10-6 m2 is stretched 1.0 mm by a force of 50.0 N. Calculate: (a) The stress. (5.0 x 107 N/m2 ) (b) The strain. (5.0 x 10-4 ) (c) Young’s modulus of elasticity. (1.0 x 1011 N/m2) (d) The energy stored in the wire. (0.025 J)
A 180-kg load is hung on a wire of length of 3.30 m, cross-sectional area 2.00x10^-5 m^2, and Young's modulus 8.00x10^10 N/m^2. What is its increase in length? mm
a 200-kg load is hung on a wire of length 4.00 m, cross-sectional area 0.200 x 10^-4 m^2, and Young's modulus 8.00 x 10^10 N/m^2. what is it increase in length?
A copper wire of cross-sectional area 2.40 × 10-6 m2 and length 3.40 m has a current of 2.80 A uniformly distributed across that area. (a) what is the magnitude of the electric field along the wire? (b) How much electrical energy is transferred to thermal energy in 20.0 min?
What is the resistance of a copper wire 1.2 m in length whose cross-sectional area is 3.0 x 10-6 m2 at 35oC?
What current in a copper wire with a cross-sectional area of 7.08 x 10 m2 would result in a drift speed equal to 4.51 x 10-4 m/s? Need Help? Talk to a Tutor
One copper wire has a cross sectional area of A and resistance R and length L. A second copper wire has a length L and cross-sectional area 2A. What is the resistance of the second wire in terms of R? R/2 R 2R 4R Some other value
A vertical wire 2.1m long and of 0.0042 cm2 cross sectional area has a Young’s modulus of 2.00 x 1011 Pa. A 4.0 kg object is fastened to its end and stretches the wire elastically. If the object is now pulled down a little and released, the object undergoes vertical single harmonic motion. Find the period of its vibration.