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An electrically neutral model airplane is flying in a horizontalcircle on a 3.0m guideline, which is nearly parallel to theground. The line breaks when the kinetic energy of the planeis 50.0 J. Reconsider the same situation, except that now there isa point charge of +q on the plane and a point charge of -q at theother end of the guideline. In this case, the line breakswhen the kinetic energy of the plane is 51.8 J. Find the magnitude of the charges.
the coefficient of static friction between the tires of a car and the street is 0.77. what is the sttepest angle on which the car can be parked without slipping
In a local bar, a customer slides an empty beer mug down the counter for a refill, With what velocity did the mug leave the counter
The Position of the object (wire gauze) on the meter stick is at the 5.00 cm mark. What is his value for the focal length of the lens
A projectile is fired with an initial muzzle speed 440 m/s at an angle 45 from a position 6 meters above the ground level. At what speed does the projectile hit the ground
A large block 19.0 cm wide, 20.0 cm long, and 24.00 cm high of mass 4.55 kg. This block is passing through air (density ?air = 1.43 kg/m3). Calculate the terminal velocity of the block
a parallel-plate capacitor with plate are A and separation x has charges +Q and -Q on its plates. The capacitor is disconnected from the source of charge, what is the total energy stored in the capacitor
A Carnot air conditioner maintains the temperature in a house at 294 K on a day when the temperature outside is 308 K
If you weigh 690 {rm N} on the earth, what would be your weight on the surface of a neutron star that has same mass as our sun and a diameter of 21.0 {rm km}.
A rifle is aimed horizontally at a target 189.71 m away. The bullet hits the target 0.91 inch below the aim point. What was the bullet's speed as it left the barrel
A beam of unpolarized light shines on a stack of five ideal polarizers, Find the angle between the axes of each pair of adjacent polarizers
Consider a small, conducting sphere of 0.0010 kg mass. Extra electrons are placed on this sphere, How many electrons must be added to each sphere
A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. What is the radius of the wire
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