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A skater with an initial speed of 7.6 m/s is gliding across the ice. Air resistance is negligible. The coefficient of kinetic friction between the blades and the ice is 0.1.
a) Obtain the acceleration caused by the kinetic friction and
b) find how far will the skater travel before coming to rest?
The world's longest suspension bridge is the Akashi Kaikyo Bridge in Japan. How much longer is the bridge on a warm summer day (27.0° C) than on a cold winter day (-5.00° C)
The drawing shows a copper wire (negligible resistance) bentinto a circular shape with a radius of 0.48 m. The radial sectionBC is fixed in place, while the copper bar ACsweeps around at an angular speed of 16 rad/s.
a ball is attached to a center post by a string that is 0.378 m long. the ball is moving in a circle on a frictionless
A sled and its rider are moving at a speed of 4.0 m/s along a horizontal stretch of snow. The snow exerts a kinetic frictional force on the run ner of the sled, what is the displacement of the sled
A man pulls a 50.0 kg box at constant speed across the floor. What is the value of the normal force
Calculate the maximum electric field associated with a laser beam operated with a 10 mW power supply and a beam diameter of 1.0 mm
a charged plate holds 3nC of charge equally distributed on the plates surface area. find the constant electric field near the surface of this plate
An object of mass m moves in a circular orbital under the influence of an harmonic oscillator potential U(r)=1/2(alpha)r^2, Determine the energy of the orbiting object
A metal bar f length L = 1.8 m slides along two horizontal metal rails, what is the emf induced across the ends of the bar
white light is shone on a very thin layer of quartz n 1.54 and above the quartz layer interference maxima for two
the planet neptune is 4.5 x1012m from the earth. its diameter is 4.9 x 107m. what diameter telescope objective would be
An accelerating voltage of 2.59 103 V is applied to an electron gun, What is the magnitude of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 µT down
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