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Three charged particles are fixed to an x axis: Particle 1 of charge q1 = 2.1e-8 C is at position x=20 cm and particle 2 of charge q2 = 2.00q1 is at position x = 30 cm, particle 3 of charge q3 = -4.00q1 is at position x = 70 cm. At what coordinate on the axis (other than infinity) is the net electric field produced by the three particles equal to zero? There are actually two answers here. Enter the one for which x>0
The best leaper in the animal kingdom is thepuma, which can jump to a height of 11.4 ft when leaving the ground at an angle of50°. With what speed, in SI units, must the animal leave the ground to reach that height?
A steel wire of length 1.92 with circular cross section must stretch no more than 0.300 when a tensile (stretching) force of 410 is applied to each end of the wire. What minimum diameter is required for the wire
A father racing his son has 2/3 the kinetic energy of the son who has 2/3 the mass of the father. What is the origianal speed of the father
A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, What are the magnitude and direction of the electric field
A sample of animal bone unearthed at an archaeological site is found to hold 173 grams of carbon and the decay rate of 14-C in the sample is measured to be 8.10 Bq. How old is the bone.
A 1000 kg cart is rolling to the right at 1.50 m/s . A 50.0 kg man is standing on the right end of the cart. What is the speed of the cart
As observed from Earth, rocket Alpha moves with speed 0.814c and rocket Bravo travels with a speed of 0.638c. What is the speed of rocket Alpha
If one shines a laser with wavelength ? = 650 nm through a single slit of width a = 0.04 mm, How far apart are the minima
If the initial speed of the block is increased to infinity, it turns out that the time taken for the block to come to a rest approaches a finite value whereas the distance traveled approaches infinity, Find the maximum time taken for the block to c..
A certain heat engine does 10.2 kJ of work and 9.5 kJ of heat is transfered to the environment in a cyclical process. What was the heat transfer into this engine
A sports car with a mass of 1000 kg crashes into the rear an SUV with amass of 2400 kg that is stopped at a RED light. The bumpers lock and two cars skid forward a distance of 3 meters before coming to a stop. if the coefficient of kinetic friction i..
An oil rig in the gulf is held at its designated drilling location by 3 tugboats. tugboat A oulls with 42000 N straight in the east direction, find the magnitude of the tension of the ropes attached to tugboats B and C
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