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A dipole moment is placed in a uniform electric field oriented along an unknown direction. The maximum torque applied to the dipole is equal to 0.1 N.m. When the dipole reaches equilibrium its potential energy is equal to -0.2 J. What was the initial angle between the direction of the dipole moment and the direction of the electric field?
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.8 104 rev/min. Find the drill's angular acceleration
A bicycle wheel has a diameter of 64.1 cm and a mass of 1.81 kg. suppose that the wheel is a hoop with all of the mass concentrated on the outside radius. The bicycle is placed on a stationary stand and a resistive force of 120 N is applied tangent..
What is the capacitive reactance of two square pieces of sheet metal 2.00 meters on a side, separated by 20.0 cm, which operate at an angular frequency of 6.000e+6 rad/s
A -100× microscope has an eyepiece whose focal length is 4.5cm. find the focal length of the objective
In a certain binary-star system, each star has the a mass of 1.00 multiply.gif 10^30 kg, What is their period of revolution in Earth years
Suppose a muon produced as a result of cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. How far would it have traveled as observed on earth
An empty storage tank has a volume of 140 ft3. What is the buoyant force exerted on it by the air
A 10.3 kg block is dragged over a rough, horizontal surface by a 63.6 N force acting at 21° above the horizontal. Find the total change in the block's kinetic energy
Knowing that these two tones are two harmonics apart, find the smallest length the tunnel could have. Also determine the harmonic number for these two tones
Two identical capacitors store different amounts of energy: capacitor A stores 2.2 x 10-3 J, Find the voltage across the plates of capacitor A
Illustrate what are the distinguishing characteristics of the EMTN and explain why it is such a popular form of financing for MNEs?
Assuming the can to be a cylinder with a height of 15cm and a diameter of 6.4cm , find the net inward force exerted on the vertical sides of the can due to atmospheric pressure
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