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Consider two widely separated conducting spheres, 1 and 2, the second having twice the diameter of the first. The smaller sphere initially has a positive charge q = 9.00×10-6 C, and the larger one is initially uncharged. You now connect the spheres with a long thin wire. How are the final potentials V1 and V2 of the spheres related? Find the final charges q1 and q2.
(a) q1?
(b) q2?
(c) What is the ratio of the final surface charge density of sphere 1 to that of sphere 2?
An archer pulls her bow string back 0.40m by exerting a force that increases uniformly from zero to 25 N. How much work does the archer do in pulling back the bow.
A string with linear density 2g/m is stretched along the positive x-axis with tension 20 N. One end of the string, at x = 0, is tied to a hook that oscillates up and down at a frequency of 100 Hz with a maximum displacement of 1.0 mm. At t = 0s, t..
An object has a kinetic energy of 257J and a momentum of magnitude 21.8 kg·m/s. Find out the speed and the mass of the object.
A 1.78 m long air column is open at both ends. The frequency of a certain harmonic is 828 Hz, and the frequency of the next-higher harmonic is 920 Hz. find out the speed of sound in the air column.
A company uses a process cost accounting system and the weighted average method for inventory costs. Calculate the equivalent units of production for direct labour for the year.
An electron with initial velocity v0 = 1.20 × 10^5 m/s enters a region 1cm long where it is electrically accelerated. It emerges with velocity v = 5.87 × 10^5 m/s. What is its acceleration, assumed constant? (Such a process occurs in conventional ..
A photoflash unit makes a very bright light for a very short time, Which is important: the intensity of the light, or the product of the intensity and the time of the flash
find its velocity after the explosion. The man pulls the boy up to the tree limb C by walking backward at a constant speed of 1.1 m/s. find out the speed at which the boy is being lifted at the instant x_A = 4 {rm m}.
A couple is defined as two parallel forces, separated by a distance, that have equal magnitudes but opposite directions. A couple only produces a rotation in a specified direction. The moment produced by a couple is known as a couple moment.
A person lifts a 950N box by pushing it up an incline. If the person exerts a force of 350N along the incline, what is the mechanical advantage of incline.
The squadron commander has the mandate that the database update should be complete in less than one minute. If the topo database is 20 GB, and link is SONET, what is the minimum standard rate necessary.
A proton collides elastically with a stationary deuteron. If the proton is deflected by 37 degrees, what fraction of its kineti energy does it transfer to the deuteron.
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