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A 1280-kg car pulls a 350-kg trailer. the car exerts a horizontal force of 3.6 * 10^3 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective friction coefficient of 0.15 for the trailer. Include a free body diagram.
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, compute the change in the Helmholtz potential
A uniform cylindrical turntable of radius 1.80 m and mass 25.2 kg rotates counterclockwise in a horizontal plane with an initial angular speed of 4pi rad/s. Find the final angular speed of the clay and turntable
A typical person radiates about 62 W of power at room temperature. Given this result, how long does it take for a person to radiate away the energy obtained by consuming a 230-calorie doughnut.
A 20-g bead is attached to a light 120 cm-long string as shown in the figure. If the angle α is measured to be 18Ao, what is the speed of the mass?
Find out the average magnitude of the induced emf if the change in shape occurs in 4.24 {rm s} and the local 0.120-{rm T} magnetic field is perpendicular to the plane of the loop.
A light spring of constant k = 155 N/m rests vertically on the bottom of a large beaker of water, What is the elongation, DeltaL, of the spring
a simple harmonic oscillator has a mass m0 on a spring of force constant k. the system is damped. it takes 10 cycles
A 3 liter pitcher of tea is at a room temperature of 70 degrees Farenheit. You pour 0.2 kg into a Styrofoam cup. How many ice cubes at 32 Degrees farenheit, each 0.025kg, must be added to cool your tea to 0 degrees Celsius?
A hole is punched in a full milk carton, 6 cm below thetop. What is the initial velocity of out flow
q1. a child is sliding on a sled at 1.6 rm ms to the right. you stop the sled by pushing on it for 0.80 rm s in a
The planet Mercury has a mass that is 5.00% of that of Earth, and its gravitational acceleration is gmercury = 3.70 m/s2.From what height would you have to drop the rock on Earth so that the fall-time on both planets is the same?
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. Determine the current in the rods
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