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a metal ball with a mass of 381middot10-6 kg and a charge of 521 mc has a kinetic energy of 477middot108 j it is
a cart with mass 310 g moving on a frictionless linear air track at an initial speed of 10 ms undergoes an elastic
a 2500 kg truck traveling north at 45 kmh turns east and accelerates to 56 kmha what is the change in the trucks
a carnot heat engine operates between reservoirs at temperatures of 864 k and 297 k in one cycle it absorbs 1405 j heat
a proton is fired from far away toward the nucleus of an iron atom iron is element no 26 ie q26 x 16 e -19 c what
a variable-speed drill initially turning at 400 rpm speeds up to 1300 rpm in a time interval of 10 s what is its
a -600-microc charge is moving with a speed of 640 104 ms parallel to a very long straight wire the wire is 500 cm from
in one type of computer keyboard each key holds a small metal plate that serves as one plate of a parallel-plate
a cylindrical capacitor consists of a solid inner conducting core with radius 0200cm surrounded by an outer hollow
you are diring a car on a freeway and you happen to be behind a big truck at one moment trucks tire spins a small 15
a 20-kg object is at rest at the top of an inclined plane that makes an angle of 30deg with the horizontal and which
an object of mass 5 kg is dropped from a certain height just before it strikes the ground it has a kinetic energy of
suppose that a binary-star system consists of two stars of equal mass they are observed to be separated by 400 million
a bucket of mass 200 is whirled in a vertical circle of radius 145 at the lowest point of its motion the tension in
jamie pulls a box of 10 kg mass up an inclined plane by a constant force of 10 n that causes a displacement of 050 m
in an electric motor a coil with170turns of radius29cm can rotate between the poles of a magnet the magnetic field
a a 100-microf capacitor is connected to a 120-v battery how much energy is stored in the capacitormicrojb had the
assume a perfectly elastic collision between a 916g bat and a 145 g baseball initially the ball was moving at 32ms
an isolated charged conducting sphere of radius 120 cm creates an electric field of 490 104 nc at a distance 220 cm
a long solenoid that has 1140 turns uniformly distributed over a length of 0445 m produces a magnetic field of
it is desired to construct a solenoid that will have a resistance of 600 at 20degc and produce a magnetic field of 400
a skier of mass 710 kg is pulled up a slope by a motor-driven cablea how much work is required to pull him a distance
a certain automobile engine delivers 239 104 w 320 hp to its wheels when moving at a constant speed of 250 ms 56 mih
a sled of mass m is given a kick on a frozen pond the kick imparts to it an initial speed of vi 200 ms the coefficient
a block of mass 100 kg slides from rest down a frictionless 350deg incline and is stopped by a strong spring with k