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A skier travels down an inclined trail at 22o and the coefficient of kinetic friction for the skier's shoes-ice surface is .2. Compute the skiers acceleration down the hill. (Start with free body diagram for the skier, add a coordinate system and then write the equations for the summation of forces acting on the skier).
In the days before compact discs and MP3 players (ancient history!), music was recorded in scratches in the surface of vinyl-coated disks called records. Find the centripetal acceleration of a point on the edge of the record
q1. an ocean liner leaves new york city and travels 37.0deg north of east for 171 km. how far east and how far north
1. what is the angular separation of two spectral lines of wavelengths 440 nm and 388 nm formed in order m2 with a 382
question a tungsten filament used in a flashlight bulb operates at 0.20 a and 3.2 v. if its resistance at 20oc is 1.5?
the angular momentum of a spinning wheel is 235kg. after application of a constant braking torque for2.0s it slows and
A 9.8-kg object oscillates at the end of a vertical spring that has the spring constant of 1.75 104 N/m. The effect of air resistance is represented by the damping coefficient b = 3.00 N•s/m.
A spring oscillator is designed with a mass of 0.291 kg. It operates while immersed in a damping fluid, Find the required damping constant for the system
Three identical masses of 320kg each are placed on the x axis. One mass is at = -120cm , one is at the origin, What is the magnitude of the net gravitational force on the mass
The latent heat of vaporization of steam is 539 cal/g. By howmany joules does the internal energy of 1 g of steam change as ittransforms from stream to water all of 100oC? Assume that the steam orginally filled a container of fixed volume.
A highway is to be built between tow towns, one of which lies 30.7 km south and 72.2 km west of the othe, What is the shortest lenght of highway that can be bult between the tow towns
two appliances are connected in parallel to a 120-v battery and draw currents i1 5.0 a and i2 3.9 a. if these
A rubber balloon filled with air is rubbed against a wool sweater and acquires a negative charge. The balloon is placed up against a flat wall and released. The balloon stays stuck to the wall. How is this possible if the wall is not charged in an..
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