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A spring rest on a 30o incline, its uncompressed length is 0.8 meter. A 2 kilogram mass is located on the incline and pushed down therefore that the spring is compressed 0.6 meter from its equilibrium position. Its coefficient of kinetic friction between the mass and the incline is 0.2 and the block moves up the incline 1 meter after the spring is released, determine what is the spring constant K.
A car of mass 1450 kg traveling at 26 m/s is at the foot of a hill that rises 140 m in 2.4 km. Find the average power delivered by the car's engine
The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m, B = 10.0 m, C =14.0 m, and D = 25.0 m. Determine the (a)magnitude and (b) direction for the resultant that occurs when these vectors are added together.
A spring, with a force constant 5.00x10^2 n/m, is horizontal with one end fixed to a wall and the other end free. How far will the block travel once the spring is released
Consider a circular loop of wire lying in the same plane but to the north of a very long straight current directed eastward. Find the direction of the current induced in the loop
An air wedge among two planar glass plates is illuminated by a432 nm monochromatic source at nearly normal incidence. A pattern of light and dark fringes is measured and observed at 700 fringes per centimetre. What is the angle among the two plates?
A 200 kg body is pulled up an inclined plane 15 m long and 5 m high. The force required to pull the body up the plane at a slow uniform speed is 976 N. compute the ideal mechanical advantage, the actual mechanical advantage and the efficiency of t..
When monochromatic light shines vertically on a soap film(n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of reflected light is observed is 326 nm. What is the vacuum wavelength of the li..
A mass of 500kg, with a velocity of 25m/s, hits a stationary mass of 200kg. The masses stick together after the collision. What is the velocity of the masses after the collision
A converging lens with a focal length of 30cm and a diverging lens with a focal length of -52cm are 127cm apart. Calculate the distance between image and diverging lens
A criminal is escaping across a rooftop and runs off the roof horizontally at a speed of 5.4 m/s, hoping to land on the roof of an adjacent building. Air resistance is negligible. The horizontal distance between the two buildings isD, and the roof of..
A young woman on a skateboard is pulled with a rope attached to a bicycle. The velocity of the skateboarder is rv = (4.1 m s)x$ and the force exerted on her by the rope is r F = (17 N)x$ + (12 N)y$.
a capacitor consists of three concentric spherical shells with radii r2r and 3r. the inner and outer shells are
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