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A dipole of moment 0.5 e·nm is placed in a uniformelectric field with a magnitude of 15multiplied by 104 N/C.What is the magnitude of the torque on the dipole for each of thefollowing situations?
a) the dipole is parallel to the electric fieldb) the dipole is perpendicular to the electric field
A very fast-moving train car passes you, moving to the right at 0.50c. You measure its length to be 14m. How long does David measure the train car to be
A hydrogen atom (particle 1) is initially at rest. A neutron (particle 2) initially moves to the east at speed v, colliding with the hydrogen atom. Immediately after the collision, the neutron is moving to the south, and the hydrogen atom is moving a..
Two spheres with uniform surface charge denisty, first with radius 7.4 cm and the other witrh radius 5.0cm, What is the surface charge density on each sphere
A 2.00 kg frictionless block is attached to a horizontal spring as shown. At t = 0, the position x = 0.225 m, and the velocity is 4.25 m/s toward the right in the positive x direction. Position x as a function of t is: x = A*cos(?t ) , where A ..
After the ambulance passes, the observed frequency of the siren is 493 Hz. Conclude the ambulance's speeds from these observations.
Two capacitors are connected in series. Let 3.40mF be the capacitance of first capacitor, 5.30mF the capacitance of the second capacitor, and Vab= 57.0 V the potential difference across the system. A)Calculate the charge on each capacitor. B)Calcu..
n air-filled spherical capacitor is constructed with inner and outer shell radii of 7.00 and 14.0 cm, respectively. Calculate the capacitance of the device
A bomber is flying horizontally over level terrain at a speed of 260 m/s relative to the ground and at an altitude of 2.60 km. At what angle from the vertical was the bombsight set
The rms current in a copy machine is 7.10 A, and the resistance of the machine is 23.5?. determine the peak power delivered to the machine
a box rests on the ice of a frozen pond. A man applies a horizontal force of 48 N to the box causing the box to accelerate at 3 m\s^2. What is the mass of the box
Consider a camera that moves its lens back and forth to focus on objects near and far. As an object approaches, what direction should the lens move
The specific heat of water is 4186 J/kg•K. The latent heat of fusion is 333 kJ/kg. The density of water is 1.0 g/cm.
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