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Two springs with spring constants k1 and k2are put together end-to-end. Let x1 be the amount by which the first spring is stretched relative to its equilibrium length, andsimilarly for x2. If the combined double spring is stretched by anamount b relative to its equilibrium length, then b = x1 + x2. Find the spring constant, K, of the combined spring in terms of k1 andk2.
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +8q. Sphere B carries a charge of -q. Sphere C carries no net charge. Spheres A and B are touched together and then separated.
Light inside an optical fiber tube hits the wall between the tube and air and is totally internally reflected. what is the index of refraction of the tube
Consider an LC circuit with L = 13 mH and C = 2285 pF. At what frequency is the reactance of the inductor equal to the reactance of the capacitor
A worker pushes horizontally on a large crate with a force of 304 N and the crate is moved 4.4 m. How much work was done.
A 400 N stun pilot who has been driving his fighter plane vertically pulls out of the dive by changing her course to a circle in a vertical plane. what is the apparent weight of the pilot at the lowest point
A rifle bullet with mass 8.00g strikes and embeds itself in a block with a mass of 0.992 kg that rests on a frictionless, Find the magnitude of the block's velocity just after impact
Converting sunlight to electricity with solar cells has an efficiency of 15%. It's possible to achieve a higher efficiency (though currently at higher cost) by using concentrated sunlight as the hot reservoir of a heat engine. What is the theoreti..
A bicycle has wheels with a diameter (DIAMETER, not radius) of 0.580 m. Find the linear acceleration of the bicycle
questiona mass m 90 kg slides on a frictionless track that has a drop follow by a loop-the-loop with radius r 15.1 m
An electric field given by = 6.0· - 3.9(y2 + 3.5)· pierces a Gaussian cube of edge length 3.2 m and positioned as shown in Fig. 23-56. (The magnitude is in newtons per coulomb and the position x is in meters.) What net charge (in Coulombs) is enclose..
In astronomy, a parsec ( pc) is de ned as the distance at which an object with a size of 1 astronomical unit (AU) would subtend an angle of 1 arc-second
An object with a mass of 23 kg lies on a horizontal frictionless surface. What is the normal force on the object in Newtons
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