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A uniform ladder of length L and weight w is leaning against a vertical wall. The coefficient of static friction among the ladder and the floor is the same as that among the ladder and the wall. If this coefficient of static friction is µs = 0.510, Decide the smallest angle the ladder can make with the floor without slipping.
A boat in a storm is subject to a force of 1750 N at 0.00 degrees and 1640 N at 145 degrees. How much of a third force and in what direction must be exerted to make the net force zero
Three deer, A, B, and C, are grazing in a field. Deer B is located 62.8 m from deer A at an angle of 51.7 ° north of west. What is the distance between deer A and C
how much heat in kcal must be added to 0.60 kg of water at room temperature 20degc to raise its temperature to
after landing a jetliner on a straight runway taxis to a stop at an average velocity of -35.0 . if the plane takes 7.00
A mass m is suspended by a massless spring of spring constant k and unstretched length b. The suspension point has a constant upward acceleration a0. Gravity is acting vertically downward. Find the Lagrangian and Hamiltonian functions and obtain H..
An AC generator is designed to produce a maximum EMF of 170V while rotating with an angular speed of 3600 rpm. how many turns of wire are needed
Atomic physicists usually ignore the effect of gravity within an atom. To see why, we may calculate and compare the magnitude of the ratio of the electrical force, What is the magnitude of the electrical force
A 250 g, 40.0-cm-diameter turntable rotates onfrictionless bearings at 61.0 rpm. A 17.0 g block sits at the center of the turntable. What is the turntable's rotation angular velocity when the blockreaches the outer edge
Two pure tones are sounded together. The periods of their pressure variations are 0.0151 s and 0.0159 s, What is the beat frequency
A transverse periodic wave described by the expression y= 5sin(pi*x/3 - 30*pi*t) is established on a string. What is the length in meters of the string
A car is accelerating while its horn is blowing. Just after the car passes a stationary person, the person hears a frequency of 960 Hz. 17.5 seconds later, the frequency heard by the person has decreased to 927 Hz. When the car is stationary, its ..
A small object, which has a charge q = 5.6C and mass m = 5.4 x 10-5 kg, is placed in a constant electric field, Determine the magnitude of the electric field
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