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A 2.3 kg block is on a horizontal plane without friction compressing a recovery spring of 1.0 kN / m 8.0 cm. When the block is released it advances along the horizontal plane and finally rises on an inclined plane θ = 30 °. The coefficients of kinetic and static friction are 0.20 and 0.30 respectively. Determine the height h that the block will reach on the inclined plane. Will the block remain at rest once it has reached this height?
A car slows down with an acceleration that has a magnitude of3.2 m/s2. While doing so, it travels 120 m in the + xdirection and ends up with a velocity of +4.0 m/s. a) what is the car’s initial velocity?
An ideal gas expands at constant pressure of 5.0 atm. from 240 milliliters to 630 milliliters, Calculate the total work (in joules) done by the gas in the process
An elite Tour de France cycler can maintain an output power of 450 W during a sustained climb. At this output power, how long would it take an 85 kg cycler (including the mass of the bike) to climb the 1100 meter high Alpe d'hues mountain?
A child is riding a merry-go-round which completes a revolution every 8.36 s. The child is standing 4.65 m from the center of the merry-go-round. Evalute the magnitude of the centripetal acceleration of the child?
A parallel-plate capacitor has a surface charge density = 8.0 10-5 C/m2 and an electric field E = 2.7 106 V/m in the material between the plates.
A laser beam is directed from air (n = 1.0) into an unknown liquid. The angle of incidence is measured to be 60° and the angle of refraction is measured to be 45°. What is the index of refraction of the unknown liquid?
A box slides down a 22° ramp with an acceleration of .92m/s2. Determine out the coefficient of kinetic friction between the box and the ramp.
A tanker ship is filled with 2.25 x 10^5 m^3 of gasoline at a refinery in southern Texas when the temperature is 17.2° C. how much has the volume of the gasoline decreased
An overhead electric power line carries a maximum current of 125 A. What is the magnitude of the maximum magnetic field at a point 4.50 m directly below the power line?
Which of the following statements explains weather?
Someone will carry two different load mA = mB = 30 kg and 50 kg. The second load was attached to the ends of massless rod of length 2 m. What is the distance the shoulders of bearers with mA load will be in balance?
Find the angular momentum of the particle about the origin when the particle is (a) at the origin, (b) at the highest point of its trajectory, and (c) just before it hits the ground. (d) What torque causes its angular momentum to change?
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