A 500 gram ball swings in a vertical circle at the end of a
A 500 gram ball swings in a vertical circle at the end of a 1.5 mlong string. When the ball is at the bottom of the circle,the tension of the string is 15 N. What is the speed of aball at that point?
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a golf ball of mass 450 x 10-2kg is struck by a club contact lasts 239 x 10-4 s and theball leaves the tee with a
a sun yacht is a spacecraft with a large sail that is pushed by sunlight although such a push is tiny in everyday
two metal spheres each of radius 25 cm have a center-to-center separation of 26 m sphere 1 has a charge of 14 x10-8 c
the filament of anincandescent lightbulb is a thin tungsten wire suppose a lightbulbhas a resistance of 42 omega at
a 500 gram ball swings in a vertical circle at the end of a 15 mlong string when the ball is at the bottom of the
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a lamp r 154 omega anelectric heater r 24omega and a fan r 48omega are connected in parallel across a 117 v linea
an electron is accelerated through 2450 v from rest and then enters a region wherethere is a uniform 180 t
a current i 13 a is directed along the positivex-axis and perpendicularl to a magnetic field a magneticforce per unit
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