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a small circular hole of radius 18 cm has been cut in the middle of an infinite flat plane of charge with a charge
a certain charge q is divided into 2 partsnbsp one is q and the other q-qnbsp if the 2 charges are then separated by a
a 920 kg sports car collides into the rear end of a 2300 kg suvs topped at a red light the bumpers lock and the two
in a discussion person a is talking 16 db louder than person b and person c is talking 33 db louder than person a what
an air-core solenoid with 70 turns is 800 cm long and has a diameter of 176 cm how much energy is stored in its
a television broadcast antenna is located at the top of a steep tall mountain the television station broadcasts by a
a planar loop consisting of four turns of wire each of which encloses 200 cm2 is oriented vertically to a magnetic
a light beam coming from an underwater spotlight exits the water at an angle of 58deg to the vertical at what angle of
a certain lens focuses light from an object 220 m away as an image 467 cm on the other side of the lens1 what type of
two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a
a balsa wood block of mass 52 g floats ona lake bobbing up and down at a frequency of 26 hz1 what is the value of the
a 65-kg skier is going down a slope oriented 33deg above the horizontal the area of each ski in contact by the snow is
a 45 kg figure skater is spinning on the toes of her skates at 10 revs her arms are outstretched as far as they will go
a particular radioactive source produces 150 mrad of 2 mev gamma rays per hour at a distance of 10 m1 how long could a
in the figure below a 200 m long vertical pole extends from the bottom of a swimming pool to a point 150 cm above the
the electric motor of a heat pump transfers energy as heat from the outdoors which is at -74degc to a room which is at
an object is placed in front of a converging lens in such a position that the lens f 160 cm creates a real image
a light ray is incident on the outer surface of the vitreous humor at an angle of 378deg by the normal discover the
an object is solid throughout when the object is totally submerged in ethyl alcohol its apparent weight is 153 n when
a coin is located 220 cm to the left of a converging lens f 160 cm a second identical lens is placed to the right of
atarantula is sitting 45m in front of a concave spherical mirror with radius of r 14m1 construct a ray diagram to scale
a 53 efficient device uses chemical energy to generate 560 j of electric energy 1100 j of energy is used1 a second
an individual white led light-emitting diode has an efficiency of 20 and uses 10 w of electric powera how many leds
an air-gap parallel-plate capacitor that has a plate area of160 mnbspnbsp 2 and a separation of240 mm is charged to 110
in a certain time period a coil of wire is rotated from one orientation to another by respect to a uniform 038-t