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Two parallel inducting wires each carry a current of 50A. Theforce per unit length between these wires is equal to the force ofthe gravitational pull on wire 1m long. If the mass of 1m of wireis 1 gram calculate the distance d between the two parallel wires.
Four point charges are arranged in a square with side length 1 meter. Charges qA and qD have charges of q= +1 uC, and charges qB and qC have charges of q= -1 uC. Point E exists at the center of the square.
q1. the potential at location a is 419 v. a positively charged particle is released there from rest and arrives at
Interstellar reddening of a stars blackbody spectrum can complicate the estimation of a star's temperature by distorting the blue (short wavelength) end of a star's spectrum. Describe the cause and how this reddening occurs.
Mechanical advantage is the ratio of the force required without the use of a machine (sometimes very simple machine) to that needed when using the machine.
A ladybug is sitting at the center of a turntable. The turntable is rotating on a frictionless bearings and it rotates without assistance from a motor. As the ladybug walks to the edge of the turntable, what happens to combined angular momentum of..
A lens for a 35-mm camera has a focal length given by f= 49mm. A How close to the film should the lens be placed to form a sharp image of an object that is 5.3mm away?
A teeter-totter is made of a 5.400 m long plank with a mass of 58.0 kg, with a fulcrum (pivot point) located 2.900 m from the right end. If a box with a mass of 94.0 kg is placed at the extreme right end of the plank, what mass must be placed at the ..
An electron beam is deflected upward through 3.23 mm while traveling in a vacuum between two deflection plates 11.6 mm apart, What is the kinetic energy of each electron when it leaves the space between the plates
A 30-06 caliber hunting rifle fires a bullet of mass 0.0122 kg with a velocity of 247 m/s to the right. The rifle has a mass of 3.2 kg. What is the recoil speed of the rifle as bullet leaves the rifle.
Assume that you have two objects, one with a mass of 10 kg and the other with a mass of 18 kg, find the electric force that these objects exert on one another
A compact 60.00 kg object is attached to one end of a horizontal 40kg uniform steel tube 2.40 m long. What is the distance from the loaded end to the center of gravity of object-tube system?
A 1120-kg car with an initial velocity of 21.0 m/s eastward crashes into the back of a 3180 kg cargo van, How much kinetic energy is lost from the car-van system
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