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A long, uniform rope with a mass of 0.100 kg per meter lies on the ground. You grab one end of the rope and lift it at the constant rate of 1.20 m/s. Calculate the upward force you must exert at the moment when the top end of the rope is 0.560 m above the ground.
Matthew pulls his little sister Sarah in a sled on an icy surface (no friction) with a force of 60 N at an angle of 600 upward from the horizontal
A vector has an x-component of ?21.0units and a y-component of 50.0 units. Find the magnitude and direction of the vector
An ideal refrigerator does 130 J of work to remove 655 J of heat from its cold compartment during each cycle. How much heat per cycle is exhausted to the kitchen
An undamped oscillator has period 0 = 1.000 seconds, but I now add a little damping so that its period changes to 1 = 1.001 seconds. What is the damping factor ? By what factor would the amplitude of oscillation decrease after 10 cycles.
Two tug boats are towing a ship. Each exerts a horizontal force of 5 tons, What net force is exerted on the ship
A long jumper maintains a constant horizontal velocity component of 7.15 m/s while jumping upward with vertical component 3.85 m/s. Determine her horizontal range
A plane accelerates from rest at a constant rate of5.00 m/s^2 along a runway that is1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway.
A 100-W resistance heater is connected to a 110-V doc source. What current flows through the heater
A commuter train blows its horn as it passes a passenger platform at a constant speed of 60.0 m/s. What is the frequency observed by a person on the platform as the train approaches
At the intersection of Texas Avenue and University Drive, a yellow, subcompact car with mass 950 kg traveling east on University collides with a maroon pickup truck with mass 1900 kg that is traveling north on Texas and ran a red light
Tarzan, who weighs 688 N, swings from a cliff at the end of aconvenint vine that is 18m long. From the top of the cliff tothe bottom of the swing, at what angle with the vertical does it break
A nearsighted man uses eyeglasses with a refractive power of 3.8 diopters. wearing the glasses .025m from his eyes, he is able to read books held no closer than .280 m from his eyes. he would like a prescription for contact lenses to serve the sam..
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