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a 100g aluminum c900jkg c calorimeter contains 250 g of water c 4186jkg c the two substances are in thermal
the resistance and the magnitude of the current depend on the path that the current takes the drawing shows three
in a heart pacemaker a pulse is delivered to the heart 81 times per minute the capacitor that controls this pulsing
a 110-watt lightbulb uses an average power of 110 w when connected to an rms voltage of 120 vnbsp what is the
a ball is thrown upward at a speed v0 at anangle of 520deg above the horizontal it reaches a maximumheight of 88 m how
a carnot air conditioner takes energy from the thermal energy of a room at 70 degrees f and transfers it as heat to the
a car is driven east for a distance of 51 km then north for 30 km and then in a direction 31deg east of northfor 29 km
a very long solid cylinder with radius r has positive chargeuniformly distributed throughout it with charge per unit
an electrical motor spins at a constant 2675 rpm if the armature radius is 349 cm what is the acceleration of the edge
a 0140 kg baseball is thrown with a velocity of 40 ms it is struck with an average force of 50000 n which results in a
a 368 kg car moving at 164 ms hits from behind another car moving at 111 ms in the same direction if the second car has
a person walks in the following pattern 98 km north then 16 km west and finally 70 km south construct the vector
20a current in 560 turns primary coil of a transformer causes 14 a to flow in the secondary coil how many turns are in
a assuming the kinetic energy of a neutron confined inside acubic box is 10 mev in its ground state calculate the size
a an electron in the first excited state n2 of hydrogen how many possible states of orbital angular momentum are there
a moving particle encounters an external electric field that decreases its kenetic energy from 9640 ev to 6490 ev as
a 55 kg person is skiing down a 30 degree slope the coefficient of friction with the snow is 05 calculate the final
a storage tank has a diameter of 80 ft a height of 25 feet andcontains oil to a height of 15 ft the suction pumps
a car is driven east for a distance of 48km then north for 32 km and then in adirection 31degeast of north for 25 km
an 18kg object is pulled 750m along a horizontal surface with a 120n force acting at 50 degrees above the horizontal uk
a train pulls away from a station with a constant acceleration of 040 ms2 a passenger arrives at a point next to the
a 200 kg box rests on a tablea what is the weight of the box and the normal force acting on itb a 100 kg box is placed
1 an rc circuit has a 5 k resistor and a 1 f capacitor at what frequency will the current lead the voltage by 4 2 an
an rlc circuit has a sinusoidal voltage supplied to it at 158 khz with a peak voltage of 172 v a 45 k resistance a 16 f
a thin oil film covers a puddle of water after a rain the oil and water has an index no 1420 nw 1333 a bright orange