In the bohr model of the hydrogen atom an electron mass
In the bohr model of the hydrogen atom an electron (mass 9.1*10^-31kg) orbits a proton at a distance of 5.3*10^-11 m. The protonpulls on the electron with an electrical force of 8.2*10^-8 N. How many revolutions per second does the electron make?
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a 700 kg box is pulled by a 500n force at an angle of 30degrees to the horizontal the friction is 300 na write the
a man pushes a 20 kg broom at a constant speed across the floorthe broom handle makes a 50 degree angle with the floor
the crankshaft in a race car goes from rest to 3000 rpm in 20seconds1 what is the crankshafts angular acceleration2 how
you are asked to construct a capacitor having a capacitance near 1nf and a breakdown potential in excess of 10000 v you
in the bohr model of the hydrogen atom an electron mass 9110-31kg orbits a proton at a distance of 5310-11 m the
a block is sent up a frictionless ramp along which an xaxis extends upward the figure below gives the kinetic energy
the drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel
a circular wire loop of radius 81 m lies in a plane perpendicularto a uniform magnetic field of magnitude 04 t in 01 s
a coil is wrapped with 195 turns of wire on the perimeter of a square frame of sides 169 cm each turn has the same area
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