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the first atomic bomb released energy equivalent to20 kilotons of tnt if 1 ton of tnt releases 4x109 j how much uranium
a 280-mh inductor has a reactance of 230 komegaa what is the frequency of the ac current that passes through the
recent studies have raised concern about heading in youth soccerie hitting the ball with the head a soccer player heads
what would happen to the current in a circuit if a voltmeter inadvertently mistaken for an ammeter were inserted into
calculate the change in potential energy of a 928 kg man when he takes an elevator from the first floor to 29th floor
a diathermy machine used in physiotherapy generates electro magnetic radiation that gives the effect of deep heat when
a positive charge q1 is located to the left of a negative charge -q2nbsp on aline passint through the two charges theer
find the potential difference required to accelerate protons fromrest to 10 of the speed of light in mv at this
torque on current loop in magneticfielda 820 cmwire carries a current of 100 a the wireis formed into a circular coil
a man of mass 623 kg stands on a scaffold supported by avertical rope at each end the scaffold has a mass of 246 kgand
1 find the energie level and the wave function of the ground state and the first excited state for system of two
two slits are 0156 mm apart amixture of red light wavelength 665 nm and yellow-green light wavelength 565 nm falls on
boat a negotiates a curve whose radius is 405 m boat bnegotiates a curve whose radius is 150 m each boat experiences
the chamber of a rock-tumbling machine is a hollow cylinder withmass 69 g and radius 71 cm the chamberis closed off by
suppose the end of your finger is charged a estimate thebreakdown voltage in air for your finger b about what
a power line carrying a sinusoidally varying current with frequency 60 hz and peak value i 55 ka runs at a height of
an automobile starting from rest has a linear acceleration to theright whose magnitude is 0800ms2 during the next 200s
a rotating door is made from four rectangular sections asindicated in the drawing the mass of each section is 80 kg a
an 80kg fighter pilot flying anf-22 jet moving at 95 ms makes the plane do a back flip keeping aconstant velocity the
a 22 cm diameter circular saw blade spins at 3200 rpm how fast would you have to push a straight hand saw to have the
a light spring has an unstretched length of 350 cm if one end is attached to the top of a door frame and a 750 kg
suppose we have a half harmonic oscillator potential forexample exactly half of a parabolic potential on the right of
as a sailboat sails 530 m due north a breeze exerts a constant force f1 on the boats sails this force is directed at an
a series rcl circuit has a resonant frequency of 2200 hz when operating at a frequency other than 2200 hz the circuit
a 20 m conductor is formed into a square and placed in thehorizontal xy-plane a magnetic field is oriented300deg above