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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
an 800g bullet is fired into a 10kg block of wood suspended on a string if the bullet embeds itself in the wood and
an ideal gas is maintained at a constant pressure of 200 nm2 during an isobaric process while its volume decreases by
a 450g gold ball is hit off a tee and flies off at 500ms if the golf club was in contact with the ball for 105ms find
the driver of a car total mass 1250kg traveling 144kmh slams on the brakes and brings the car to a stop in 400m
a 600kg skier traveling at 200ms reaches the foot of a steady upward 200 degree incline and glides 350m along this
a 020 g of hydrogen gas are help in a rigid container the temperature of the gas is changed from 50 k to 80 k how much
a 750 g aluminum pan is removed from the stove and plunged into a sink filled with 100 liters of water at 200deg c the
all simple machines pulleys operate via the same principle explain how relative amounts of force used distance