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A small, rigid object carries positive and negative 3.00-nC charges. It is oriented so that the positive charge has coordinates (?1.20 mm, 1.00 mm) and the negative charge is at the point (1.50 mm, ?1.30 mm).(a) Find the electric dipole moment of the object........... C · m i + ........... C · m j(b) The object is placed in an electric fieldE = (7.80 x 10^3 ? 4.90 x 10^3 ) N/C.Find the torque acting on the object............ N · m(c) Find the potential energy of the object–field system when the object is in this orientation............. J(d) Assuming the orientation of the object can change, find the difference between the maximum and the minimum potential energies of the system............. J
A 2.80-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.10 m down the incline in 1.20 s. Find the magnitude of the acceleration of the block.
A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of - 1.2 m/s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance.
A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0º above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the x and y distances from where the projectile was launched to..
At one instant a bicyclist is 35.0m due east of a park's flagpole, going due south with a speed of 20 m/s. Then, 19 s later, the cyclist is 60.0 m due north of the flagpole, going due east with the speed of 11 m/s. For the cyclist in this 19s inte..
A puck mass m=0.4 kg is sliding on a frictionless surface at a speed v=2.50 m/s in the x direction and I hits another puck o mass m= .2 kg at rest at the origin. what are the final speeds of the particles
A volume of 2000 cm^3 of carbon dioxide gas at normal pressure and 20 C is compressed isothermally into a 2 cm^3 container, what is the final pressure inside the container
A 5,20 g bullet moving at 672 m/s strikes a 700 g wooden block at rest on a frictionless surface. What is the speed of the bullet-block center of mass
An electron is fired with speed 2400 m/s into a region of uniform electric field with magnitude 8 N/C. how long will it take for the electron to come to a stop
he first person is initially moving forward with a speed of 2.50 m/s, and the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and ..
You are stranded on a deserted island. You have some wire, but no magnets. You decide to use the Earth's magnetic field, the only one available to you. What area must the coil have
A conical pendulum is formed by attaching a 41.0 g mass to a 1.3 m string. The mass swings around a horizontal circle of radius 32.0 cm. What is the tension in the string
A 130-g baseball, moving along the x-axis with speed 29.0 m/s strikes a fence at a 45 degree angle and rebounds along the y-axis with unchanged speed. Give x and y components of its change in momentum.
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