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Explain how a charged rubber comb attracts bits of paper and how a charged balloon sticks to a wall or ceiling. Why do clothes sometimes stick together when removed from a dryer?
What about at the point (0.60 m, 2.85 m)? Hint: find the wavelength, and then find the path length difference from the speakers to the point in question. Assume the speed of sound to be 343 m/s. Drawing a diagram will help.
A hypothetical positronium atom consists of an electron orbiting a positron, Using the Bohr Theory, calculate the radius (in nm) of the first orbital of this "atom"
An electron has a kinetic energy of 2.3*10-17 J. It moves on acircular path that is perpendicular to a uniformed magnetic fieldof magnitude 4.9*10 -5 T. Determine the radius of the path
A 10-kilogram block of southern pine 30 centimeter on a side is held submerged under water. Determine what force is required to do this
a a tennis ball is dropped from 1.51 m above the ground. it rebounds to a height of 0.822 m.with what velocity does it
The original Ferris wheel had a radius of 38 meter and completed a full revolution (2π radians) every two minutes when operating at its maximum speed. estimate the magnitude of the tangential acceleration at the outer rim of the wheel during its de..
The elevator in the John Hancock building in Chicago move 921 ft. in 16 s. What is their speed?
A rope, under a tension of 90N and fixed at both ends, oscillates in a second-harmonic standing wave pattern. What is the mass of the rope
the wingspan tip-to-tip of a boeing 747 jetliner is 59 m. the plane is flying horizontally at a speed of 300 ms. the
describe the angle pi6 by an angle of negative radian
a basketball is thrown horizontally with an initial speed of 4.50 ms. a straight line drawn from the release point to
One person drops a water balloon from rest 8 m above the ground . Simultaneously a second person throws a water balloon down with an initial downward velocity of 4 m/s.
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