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A spring with spring constant k is attached to mass M. The spring is horizontal and mass M sits on a horizontal frictionless table. On the side of mass M opposite to the spring a cord is attached that runs over a pulley (which you may take to be ideal: zero mass, zero moment of inertia, and frictionless). The cord is attached to a hanging mass m.
Find the equilibrium position of the masses. (That means: How far does the spring stretch from its un-stretched length?)
q1. a car is travelling with a velocity of 88.0 kmh. it accelerates at a constant rate of 20 ms2. if the acceleration
A box is placed on a conveyor belt that moves with a constant speed of 1.05. The coefficient of kinetic friction between box and belt is 0.80. How much time does it take for the box to stop sliding relative to belt.
A bird feeder in the shape of a 50-cm-diameter disk of mass 340 g, suspended by a wire with torsional constant 5.00N?m/rad, What is the mass of the birds, assuming they have the same mass
at what height above the earth is the acceleration due to gravity 10% of its value at the surface, find the speed of a satellite orbiting at that height?
Suppose you are driving in the High Sierras from Mammoth Mountain to the Owens Valley 2038 m below. what would be your approximate final speed
a person pulls on a 50Kg desk with a 200N force acting at 30 angle above the horizontal. the desk does not budge. draw a force diagram for the desk. Write down the equation that describes the forces which act in the x-direction.
A tennis ball rolls off the edge of a tabletop of height 0.850m above the floor and strikes the floor at a point a horizontal distance 1.80 m from the edge of the table. You can ignore air resistance. Find out the time of flight.
When responding to sound, the human eardrum vibrates about its equilibrium position. What is the maximum acceleration of the eardrum
While taking a walk around your neighborhood, you see a flash of lightning hit the Earth in the distance. How far away did the lightning strike the ground
A truck is traveling at 11.1 m/s down a hill when the brakes on all four wheels lock. How far does the truck skid before coming to a stop
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
How much does it cost to cook food in a 12,000 W oven for 47.6 minutes? Assume electricity costs 8.0 cents per kW·h
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