How much work is done by the crane
One of the most powerful cranes in the world operates in Switzerland. It can slowly raise a load of M = 6000 tonnes to a height of h = 11.0 m (1 tonne = 1000 kg). How much work is done by the crane?
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A 1700 kg sports car accelerates from rest to 85 km/h in 7.1 s. What is the average power delivered by the engine?
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When a potential difference of 160 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 36.0 nC/cm2. What is the spacing between the plates?
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Rod, A which is 30 cm long, expands by 0.045 cm when heated from 0oC to 100oC. Rod B, also 30 cm long expands by 0.075 cm for the same change in temperature. A third Rod C, also 30 cm long is made up of the materials of rod A and B, connected end
The equation for the displacement in meters of an object moving in SHM is x(t) = 1.50 cos (4.20t) where t is in seconds. (a) What is the maximum speed of the object?
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