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A solid, uniform, spherical boulder starts from rest and rolls down a 50.0-m high hill. The top half of the hill is rough enough to cause the boulder to roll without slipping, but the lower half is covered with ice and there is no friction. What is the translational speed of the boulder when it reaches the bottom.
a a wire has a current density of 6.59 times 106 am2. if the cross-sectional area of the wire is 1.05 mm2 what current
The 14C atom undergoes an explosion and decays into a nucleus, an electron, and a neutrino. From this determine the speed of the recoiling nucleus
q. in 1909 robert millikan was the first to find charge of an electron in his now-famous oil drop experiment. in the
Sunlight is observed to focus at a point 18.5cm behind a lens. What is its power in diopters
A 5-kg fish swimming 1 m/s swallows an absentminded 1-kg fish swimming toward it at a speed that brings both fish to a halt immediately after lunch. What was the speed of the smaller fish
a coil of wire is connected to an ideal 9.0-v battery at t 0. at t 15.8 ms the current in the coil is 204 ma. one
Two equally charged particles each have a mass of .015kg. They are suspended by a light string. determine The magnitude of the repulsive electric force
A potter's wheel having a radius 0.49 m and a moment of inertia 10.9 kg·m2 is rotating freely at 52 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
A flatbed truck carries a load of steel. Only friction keeps the steel from sliding on the bed of the truck. The driver finds that the minimum stopping distance in which he can stop from a speed of 20.0 mi/h without having the steel slide forward in..
A grocery sack can withstand a maximum of 310 N before it rips. Will a bag holding 20.0 kg or groceries that is lifted from the checkout counter at an acceleration of 5.5 hold?
a shell is fired at an angle of 20 degree above the horizontal at a velocity of 200 ms a what is the range? b what is
You are given three capacitors, with capacitances 0.0075 µF, 12000 pF, and 0.029 µF, what is the maximum and the minimum voltage difference would they make when charged to 130 µC
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