How fast was the skier going problem
A skier slides horizontally along the snow for a distance of 10 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is µk = 0.030. Initially, how fast was the skier going?
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Then use Archimedes' principle to find the density required for the air inside the balloon. Then find the temperature of the air inside the balloon.
A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 29.00°. The indices of refraction for the blue and red components of the ray are: blue (ndiamond= 2.444,ncrown glass= 1.531), and red (ndiamond= 2.410,ncrown
A hollow metal sphere has a total charge of 50 µC. If the radius of the sphere is 50 cm, the electric field intensity at a distance of 3.0 m from the surface of the sphere is approximately-----------N/C. (Careful of the wording here.)
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A 2.00kg projectile is launched from the earth's surface with an initial velocity of 38m/s at an angle of 45 degrees with respect to the horizon. The projectile lands on the ground some distance away. a) what is the work done by gravity on the pro
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A 104 W lightbulb has a resistance of about 12 when cold (20°C) and 137 when on (hot). Estimate the temperature of the filament when hot assuming an average temperature coefficient of resistivity a = 0.0060 (C°)-1.
The box slides down the slope described by the equation y=0.05x^2 where x is in meters. If the box has x-components of velocity and acceleration of Vx=-3m/s and ay=-1.5m/s^2 at x=5m. Determine the y-components of the velocity and the acceleration
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