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A tow truck is pulling a car out of a ditch by means of a steel cable (Y = 2.0 x 1011 N/m2) that is 8.24 m long and has a radius of 0.402 cm. When the car just begins to move, the tension in the cable is 877 N. How much has the cable stretched?
As the block has raised a vertical height of 0.725, the tension in the cord is 4.66 .What is the velocity of the bullet originally.
light of wavelength lambda nought in a vacuum has a wavelength of 435nm in water and 390 in benzene. what is the index of refraction of water relative to benzene
A rock is thrown vertically upward with a speed of 17.0 m/s from the roof of a building that is 70.0 m above the ground. Assume free fall. What is the speed of the rock just before it strikes the ground
Two violin strings are tuned to the same frequency, 294 Hz. The tension in one string is then decreased by 1.5 %. What will be the beat frequency heard when the two strings are played together.
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. calculate the moon\'s radial acceleration.
A 3.40 g coin is positioned 16.0 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of mu_s = 0.720 and mu_k = 0.480. What is maximum angular velocity with which the turntable can sp..
consider a metal rod, length = .30m, cross sectional area=0.0010m^2, temperature difference between the ends is 65*C. What is the thermal conductivity of the metal
A 250g , 25-cm-diameter plastic disk is spun on an axle through its center by an electric motor. What torque must the motor supply
An ideal gas at 17.8 °C and a pressure of 1.66 x 105 Pa occupies a volume of 3.22 m3. calculate How many moles of gas are present
Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth.
Three resistors, 21, 39, and 73 , are connected in series, determine the potential difference across the three resistors
A 12.4??C particle with a mass of 2.70×10?5kg moves perpendicular to a 1.01T magnetic field in a circular path of radius 22.8m. How long will it take the particle to complete one orbit
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