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Question: Two charged balls, one with a charge of +5.0µC and the other with a charge of +2.4µC, are placed a distance d=10.0 cm apart from each other and rigidly held in place. A third ball with a charge of -3.0µC is dangled from a string between the two charged balls such that it remains in equilibrium. Calculate the distance the third charged ball is from to the +2.4µC charge.
If the pipe is open at one end only, how many harmonics are possible in the normal hearing range from 20 to 20000 Hz
Two steel wires of the same length, one with radius r and the other with radius 3r, are connected together, end to end, and tied to a wall. How far does the point where the two wires meet move
a 2.00 kg ball is attached to the bottom end of a length of a string 0.60 m in lenght. the top end of the string is
The E string of a violin has a mass per unit length of .0004 kg/m , and must be tuned to a frequency of 660 Hz. The vibrating length of the string is .33 m Calculate the tension when the string is in tune.
In the figure, block 1 has mass m1 = 470 g, block 2 has mass m2 = 510 g, and the pulley is on a frictionless horizontal axle and has radius R = 4.6 cm. When released from rest, block 2 falls 78 cm in 4.6 s without the cord slipping on the pulley. ..
A basketball player makes a jump shot. The 0.60 kg ball is released at a height of 2.0 m above the floor with a speed of 7.2 m/s. What is the work done on the ball by air resistance
In a mass-spring system, the mass of the object is 80g and the spring constant is 200N/m. What is the period of oscillataions for this system
Two identical conducting spheres, fixed in place, attract each other with a force of 0.094 N when their center to center separation is 60.00 cm. What was the initial negative charge on one of the spheres
question how large an emf rms will be generated in an antenna that consists of a 426 loop circular coil of wire 1.54 cm
A 1.6-m-long string fixed at both ends vibrates at resonant frequencies of 768 Hz and 1152 Hz, with no other resonant frequency between these values. What is the fundamental frequency of this string
a microwave oven operates at 2.4 ghz with an intensity inside the oven of 2500 wm2.what is the amplitude of the
On a sightseeing trip in Europe, Sam is riding a tour bus moving north along a straight section of road at 8.0 m/s. Determine Sam Velocity relative to the castle
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