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l'l Compare the force of one proton on another for electric and for gravitational forces. Both force laws are inverse square laws, so regardless of
l'l Compare the force of one proton on another for electric and for gravitational forces. Both force laws are inverse square laws, so regardless of the separation of the particles the two forces have a xed ratio, What is that ratio? mass of the proton 1.67X 1027 kg charge on the electron or proton 1.60)( 1019 C G 6.67X10Tllslunlts k 9x109 0 The electric force and graVIty exactly balance and are the same 0 The electric force is 1020 times gravity. 0 The electric force is 10'36 of graVIty O The electric force 1036 times that of gravity, The ampere is the standard current unit for physics, and IS how the unit of charge the coulomb, is determined. If two Wires 1 meter long are parallel and each carrying a current of 50A In the same direction, what is the force exerted by the wires on one another when they are 0.01 m (1 cm) apart? 0 0.05 N repelling one another 0 005 N attracting one another 0 500' 000 N repelling one another 0 500' 000 N attracting one another > & Moving to another question will save this response. Suppose a speck of dust has a charge on it of a microcoulomb, that is 10 * C. If it has a mass of 0.002 gm, that is 2x10 * kg or 2 milligrams, what acceleration does it feel in a field of 1000 V/m? This is the basis of an electrostatic "precipitator", a device to trap ash in the exhaust of coal-fired power plants. Hint: The force is the electric field times the charge, and the field in SI units is in V/m. O 9.8 mis2 O 0.05 m/s2 5000 m/s2 O 500 m/s2
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