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The dipole moment of a water molecule in liquid water is 6.2×10−30 C·m, and the effective diameter of a water molecule is 2.8×10−10 m. In an earlier homework problem the effective dipole charge separation for water was calculated as 1.9×10−11 m. Since the diameter of a water molecule is more than ten times the effective charge separation, the electric field strength approximation works quite well at the diametric distance. Electric "Van der Waals" forces between water molecules make them clump together and are a cause of everyday fluid phenomena such as surface tension in water. (a) What is the strength of the electric field on the dipole axis of a water molecule, at the distance of the center of a contiguous neighboring molecule? (b) What is the strength of the electric field on the dipole perpendicular bisector of a water molecule, at the distance of the center of a contiguous neighboring molecule?
Carbon tetrachloride (CCl4) is diffusing through benzene (C6H6), as the drawing illustrates. The concentration of CCl4 at the left end of the tube is maintained at 1.09 x 10-2 kg/m3, and the diffusion constant is 16.7 x 10-10 m2/s.
An airplane has an effective wing surface area of 15 m2 that is generating the lift force. What is the weight of the plane
The speed of a light wave in a certain transparent material is 0.501 times its speed in vacuum, what is its wavelength in nanometers
A 1.3-µF capacitor is connected to a 4.7-V battery. What is the magnitude of the charge on each plate?
a wheel of diameter 144 cm has an axle of diamter 15 cm. a force of 150N is exerted along the rim of the wheel. What force should be applied to the outside of the axle
Consider a particle of mass m contrained to lie on the surface of a cone with it's vertex pointing down and half angle alpha. write the equations of constraint
A red laser pointer with a wavelength of 635 nm is shined on a double slit producing a diffraction pattern on a screen that is 1.75 m behind the double slit. The central maximum of the diffraction pattern has a width of 4.30 cm, and the fourth bright..
q1. a 4.5 kg block starts at rest and slides a distance d down a frictionless 32.0 degree incline where it runs into a
A kid picks up a toy of mass 139g, from the floor. The kid lifts the toy 42.2cm above the floor. How much work does the kid do on the toy
A 9.58-m ladder with a mass of 22.2 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 264 N. What is the net torque acting on the ladder
971-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 30.0 m/s. What is the average force exerted on the car
Charges q1=+2.20 × 10-5 C and q2=-2.40 × 10-4 C are placed at rest 66.5 cm apart. How much work must be done by an outside agent to move these charges
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