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an ac power supply puts out a voltage v 170sin2n60t and is connected to a resistor r 20 ohm what is the average power
compute the linear momentum and angular momentum of a frisbee of mass 0158 kg if it has a linear speed of 160 ms and an
a sphere of radius r starts from rest and rolls without slipping along a curved surface dropping through a vertical
a 205 kg mass is attached to a light cord that is wrapped around a pulley of radius 465 cm which turns with negligible
a solenoid of radius 45 cm has 600 turns and a length of 15 cma find its inductancemhb find the rate at which current
make a drawing of a metal rod that has length 12cm and a total mass of 70g including two metal loops at both ends which
an intergalactic rock star bangs his drum every 150 s a person on earth measures that the time between beats is 270 s
a 03 kg apple falls from rest through a height of 40 cm onto a flat surface upon impact the apple comes to rest in 01 s
you have four identical resistors each with a resistance r you are asked to connect these four together so that the
a gold prospector finds a solid rock that is composed solely of quartz and goldthe total mass and total volume of the
two 500 g spheres with equal positive charges are suspended by 100 cm long strings in a uniform electric field e 200 x
the secondary coil of a transformer provides the voltage that operates a food blender if the turns ratio of the
a radiator has an emassivity of 90 and its exposed area is 123 m2 the temperature of the radiator is 100 degrees c and
the magnitude and direction of acceleration of body both are constant will the body moves in straight
two moles of ideal gas at atmosperic pressure 20 degree celcius is confined to a closed container of volume 445 liter
if the fundmental source of a sound wave is a vibrating object what is the fundamental source of an electomagnetic
carbon disulfide n 163 is poured into a container made of fused quartz n 146 what is the critical angle for internal
an object placed 100 cm from a concave spherical mirror produces a real image 800 cm from the mirror if the object is
a patient is having a magnetic resonance imaging scan an mri and has neglected to remove a 57 cm diameter metallic
a 25-kg box slides from rest down a 90-m-long incline that makes an angle of 15deg with the horizontal the speed of the
what is the coefficient of thermal expansion for a substance that was originally 2 m long at 20 degrees c and expants
according to equation 207 an ac voltage v is given as a function of time t by v v0sin2f t where v0 is the peak voltage
two wires are identical except that one is aluminum and one is nichrome the aluminum wire has a resistance of 016 what
a neighborhood transformer on the top of a utility pole transforms 150kv 600 hz alternating voltage down to 1200v to be
an ac generator supplies 215 v peak voltage at 125 hz frequency how much power is dissipated in a resistor with r165