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A uniform ladder of length L and mass 5 kg rests against a smooth, frictionless, vertical wall. The coefficient of static friction between the ladder and ground is 0.4.
a.) Draw a force diagram indicating all the forces acting on the ladder and where they are applied.
b.) Find the minimum angle,between the ladder and the ground at which the ladder will not slip.
A loudspeaker at the origin emits a 140Hz tone on a day when the speed of sound is 340 m/s. What is the distance between these two points
An ocean liner sailing at 43.40 m/s is caught in a current flowing 11.20 m/s at 24.7 degrees east of south what is the direction (angle) of the overall speed of ocean liner.
You work for a moving company and are given the job of moving two crates (masses are 130kg and 280kg) held together by a rope attached between the two. You pull on a rope attached to the larger crate giving the system the acceleration of 0.29m/s2. Wh..
The second ball, after rising, falls and also strikes the ground below. If air resistance can be neglected and if your downward and upward initial speeds are the same, explain how will the speeds of the balls compare upon striking the ground?
The altitude of a hang glider is increasing at a rate of 6.80 m/s. At the same time, the shadow of the glider moves along the ground at a speed of 15.5 m/s when the sun is directly overhead. Calculate the magnitude of the glider’s velocity.
Illustrate a new gravitational potential energy
A seagull flies at a velocity of 10.00 m/s straight into the wind, If it takes the bird 18.0 min to travel 6.00 km relative to the earth
You are asked to design a parallel-plate capacitor having a capacitance of 1 F and a plate separation of 1.00 mm. compute the required surface area of each plate. Is this a realistic size for a capacitor.
What is the tension in the cord in the original situation. A cube of ice is taken from the freezer at -9.3°C and placed in a 95 g aluminum calorimeter filled with 297 g of water at room temperature of 20°C. The final situation is observed to be all..
A metal sphere A has charge Q. Two other spheres, B and C, are identical to A except they have zero net charge. A touches B, then the two spheres are separated
A converging lens with a focal length of 6.00cmforms an image of a 4.00mm -tall real object that is to the left of the lens. Where are the object and image located
given a sargent ideal gas cycle. All process ar quasi-static, and the heat capacities are constant. Prove that the thermal efficiency of an engine performing a cycle
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