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the transmutation reaction 194po -gt 33al 31na what is the element abbreviation of the daughter atomb what is the
the angular momentum of a spinning wheel is 230 kg middot m2s after application of a constant braking torque for 22 s
an airplane flies directly north at 200 ms in a region where the vertical component of the earths field is 40 microt
a modern sculpture has a large horizontal spring with a spring constant of 274 nm that is attached to a 570-kg piece of
a loop of area 002 m2 is perpendicular to a magnetic field which changes from 2 t to 15 t in a time of 04 sec what is
two 040kg soccer balls collide elastically in a head-on collision the first ball starts at rest and the second ball has
a thin uniform rod has a length of 0450m and is rotating in a circle on a frictionless table the axis of rotation is
a hockey player uses her hockey stick to exert a force of 178 n on a stationary hockey puck the hockey puck has a mass
a 02kg toy car rolls down ramp if the car started from rest at a height of 030m what is its speed at the bottom of the
a ferris wheel is moving at an initial angular velocity of 10 rev54s if the operator then brings it to a stop
two ropes are pulling upward on a large crate the weight of the crate is 420 n the tension in the left rope is the same
a pinada practically in a shape of a slender thin rod of length mass 40 kg is hanging from the tree branch after being
an aluminum cylinder is suspended in an unknown fluid by a spring scale outside the fluid the object weighs 20n in the
an old fashioned vinyl record rotates at a constant rate of 33 rpm if it plays music for 16 mins how far does a point
when a 470-v emf device is placed across two resistors in series a current of 150 a is flowing in each of the resistors
a 1000kg car moving 40ms skids to a stop during the skid the only force is the frictional force between the tires and
two wheels have the same mass and radius of 41 kg and 038 m respectively one hasa the shape of a hoop and the otherb
a water heater consisting of a metal coil that is connected across the terminals of a 210-v power supply is able to
the drawing shows an a-shaped ladder both sides of the ladder are equal in length this ladder is standing on a
a pitcher claims he can throw a 0160-kg baseball with as much momentum as a 250-g bullet moving with a speed of 150 103
a daredevil on a motorcycle leaves the end of a ramp with a speed of 360 ms as in the figure below if his speed is 338
when a battery is connected to a 890- resistor the current is 391 a when the same battery is connected to a 4170-
the acceleration of gravity near the surface of the moon has about on-sixth the magnitude that it does on earth the
a skier traveling 120 ms reaches the foot of a steady upward 18deg incline and glides 112 m up along this slope before
when a 200-kg object is hung vertically on a certain light spring described by hookes law the spring stretches 267 cma