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the typical radius of an atomic nucleus is about 50x10-15m the velocity of a proton is measured to an accuracy of plus
an electron beam is accelerated during a potential of 50 kv such that the electrons all have essentially the same speed
the dial on an am radio contains numbers ranging from about 530 to about 1600 these numbers correspond to the frequency
a sphere of radius a has total charge q the volume charge density in cm3 within the sphere is rhor cr2 where c is a
a satellite operates at an altitude of 20200 km and utilizes communication frequencies of157542 mhz find the
a baseball outfielder throws a 0150-kg baseball at a speed of 400 ms and an initial angel of 300 degreesnbsp what is
a 23-kg cart is rolling along a frictionless horizontal track towards a 17-kg cart that is held initially at rest the
problem 4 a block of mass m slides down a frictionless incline as the block is released from height h above the bottom
the drawing shows a hydraulic chamber with a spring spring constant 1150 nm attached to the input piston and a rock of
a water tower is a familiar sight in many towns the reason of such a tower is to provide storage capacity and to
how can i calculate a moment of inertia about its central axis uniform solid cylinder has radius r mass m and length
a radioactive material produces 1200 decays per minute at one time and 6 h later produces 300 decays per minute what is
a heat engine takes heat qh from a hot reservoir and uses part of this energy to perform work w assuming that qh cannot
a 10kg block is attached to a light cord that is wrapped around the pulley of an electric motor what is the power
assume that crude oil from a supertanker has density 750kgm3 the tanker runs aground on a sandbar to refloat the
your accident-reconstruction team has been hired by the local police to analyze the following accident a careless
electric field in the atmosphere a ordinarily there is an electric field in the atmosphere of approximately 100 vm
the identical twins speedo and goslo join a migration from the earth to planet x it is 200 light-years away in a
a rod with sides insulated to prevent heat loss has one end immersed in boiling water t 100degreesc and the other end
a wooden raft has a mass of 55 kg when empty it floats in water 1000kgm3 with 64 of its volume submerged what mass of
a 400 kg piano is being lowered into position by a crane while two people steady it by ropes pulling to the sides bobs
bonnie and clyde are sliding 270 kg bank safe across the floor to their getaway car the safe slides with a constant
a bicycle wheel has a radius of 25 cm what linear distance is traveled with a point on the edge of the wheel if it
concave shaving mirror a concave shaving mirror has a radius of curvature of 350 cm it is positioned so that the
a saw blade has a mass of 05 kg and a radius of 10 cm and is rotating at 300 rpm once turned off it takes 5 seconds to