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Two small metallic spheres, each of mass m = 0.15 g, are suspended as pendulums by light strings from a common point as shown in the figure below. The spheres are given the same electric charge, and it is found that they come to equilibrium when each string is at an angle of? = 9.0° with the vertical. If each string has length L = 39.0 cm, what is the magnitude of the charge on each sphere? Put the answer in Nc
A simple harmonic oscillator takes 12.0 s to undergo six complete vibrations.
What is the direction of the electric field at point P and determine the linear charge density. Put your answer in terms of q, L, a, and physical constants.
The pilot of an airplane executes a loop-the-loop maneuver in a vertical circle. What is the pilot's apparent weight at the lowest point if his true weight is 160 lb
A pair of slits, separated by0.150mm, is illuminated by light having a wavelength of?=586nm. What is the path difference for the two slits at the locationy
A 1.00×104kg railroad car is rolling at 3.00m/swhen a 7000kg load of gravel is suddenly dropped in. What is the car's speed just after the gravel is loaded
a child stands on a playground merry-go-round a distance of 1.50 m from the rotation axis. the coefficient of static
The velocity of the bal
Suppose you're building a scale model of the hydrogen atom, How many miles away (1 mi = 1.61 Ã- 105 cm) should the electron be placed
a bottle rocket can shoot its projectile vertically to a height of 23.0 . you can ignore air resistance. at what angle
A baseball player friend of yours wants to determine his pitchingspeed. You have him stand on a ledge and throw the ballhorizontally from an elevation 7.00 m above the ground. The ball lands 30.0 m away.
a particular organ pipe can resonate at 264 hz 440 hz and 616 hz but not any other frequencies in between.a what is the
Designing an oceanographic mooring. A mooring is a platform for placing scientific instrumentation in the water at a range of depths for extended periods of time. At its most basic, it consists of an anchor, a piece of cable, and a buoyant float (whi..
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