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On a frictionless ice a variable force P in Newtons, expressed by P= 5 + 6 t, is applied to an initially stationary block of wood to move it across the ice until its final speed is V= 25 m/sec. The mass of the wood is M= 3 kg. Vectors P and V are in the same direction.
a. Find the time, in seconds, that the force is applied.
b. Find the average force during the force application.
a 250-turn solenoid carries a current of 9.0a. the radius of the solenoid is .075m and its length is .14m. determine
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The 1.48cm3 volume betweenthe plates of a 111 pF parallel-plate capacitor is filled with adielectric. The area of each plate is 0.00222 m2 and the plates are0.666 mm apart. Find the permittivity of the dielectric.
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a freezer is used to freeze 3.0 l of water completely into ice. the water and the freezer remain at a constant
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A spool of wire of mass 4.1 kg and radius 0.35 m is unwound under a constant wire tension 4.4 N. Find the friction force on the bottom of the spool
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