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Two 120kg lead spheres are suspended from 170m -long massless cables. The tops of the cables have been carefully anchored exactly 2.0m apart. By what distance do the two spheres move closer?
A 3.0 kg block rests on a 30 degree slope and is attached by a string of neglible mass to a sold drum of mass 0.80 kg and radius 10.0 cm, Find the angular accleration of the drum
An electron and a positron each of mass 9.1 x 10^-31 kg, are in the same general vicinity and have very small initial speeds
An object is moving along a straight line and the uncertainty in its position is 1.5 m. Find the minimum uncertainty in the momentum of the object
If the speed of sound is 1100 feet per second and a tuning fork oscillates at 440 cycles per second, what is the wavelength of sound produced.
Find the magnification of the heater element given that the mirror has a radius curvature of 46 cm and produces an image of the coils 2.6m away from the mirror
A 119.0-kg block is on a horizontal frictionless surface, on top of it is a second smaller block of 55.0-kg. Find the coefficient of kinetic friction between the two blocks
A sinusoidal voltage ?v = (100 V) sin (200t) is applied to a series RLC circuit with L = 40 mH, C = 120 ?F, and R = 32 ?. What is the maximum current in the circuit
At a pressure of 0.0500 atm a constant-volume ideal gas thermometer reads a temperature of 345 K. What is the thermometer's triple point pressure, Pt
problem 1. my son jumps on his stomp rocket and it takes off with an initial speed of 9.8 ms starting from the
A sinusoidal voltage ?v = (75 V) sin (100t) is applied to a series RLC circuit with L = 50 mH, C = 160 ?F, and R = 34 ?. What is the impedance of the circuit
For a simple harmonic oscillator with k = 4.0 N/m and A = 0.75 m, the time between maximum velocity and maximum acceleration is 2.50 s. (a) what's the oscillation period? (b) What's the mass? (c) find the maximum velocity and maximum acceleration.
Tarzan swings on a 31.0m vine initially inclined at an angel of 28.0 degrees to the vertical. What is his speed at the bottom of the swing if he pushes himself with a speed of 2.5m/s
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