A force of 15.0 N is applied to a wire with an un-stretched length of 4.00 m and a diameter of 5.00 mm. If the wire changed length by 1.20 mm, then the strain in the wire is
a. 
b. 
c. 
d. 
e. 
a.
You might also like to view...
Each of two small non-conducting spheres is charged positively, the combined charge being 40 ?C. When the two spheres are 50 cm apart, each sphere is repelled from the other by a force of magnitude 2.0 N. Determine the magnitude of the smaller of the two charges
a. 1.4 ?C b. 1.1 ?C c. 2.0 ?C d. 3.3 ?C e. 17 ?C
A body released from rest falls with an acceleration of 9.8 m/s2. If the same body is thrown upward at an angle, and air resistance is negligible, its acceleration after release will be
A. upward and equal to 9.8 m/s2. B. downward and greater than 9.8 m/s2. C. downward and less than 9.8 m/s2. D. upward and greater than 9.8 m/s2. E. downward and equal to 9.8 m/s2.
Two thin slits are 6.00 ?m apart. Monochromatic coherent light falls on these slits, and produces a fifth-order bright interference fringe at an angle of 32.3° away from the centerline. What is the wavelength of the light?
A) 164 nm B) 416 nm C) 614 nm D) 641 nm
Polaroid sunglasses help when skiing on snow on a sunny day by reducing the sunlight from the snow. This light from the snow has been polarized by:
a. optical activity. c. reflection. b. selective absorption. d. double refraction.