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a horizontal spring is lying on a frictionless surface one end of the spring is attached to a wall whle the other end
each of the sources in the drawing emits a frequency of 457 multiplied by 1014 hz and the speed v is 250 106 msb
a person who weighs 635 n is riding a 98 n mountain bike suppose the entire weight of the rider and bike is supported
a speeder is pulling directly away and increasing his distance from a police car that is moving at 23 ms with respect
a 1020 kg car moving 400 ms rear ends a 560 kg car at stop when they collide the bumpers lock and they move together
a converging lens has a focal length of 8650 cm a 140 cm tall object is located 1350 cm in front of this lensa what is
a skier starts from rest at the top of a hill inclined at 105 degrees the hill is 200m long and the coefficient of
a mirror produces an image that is located 3800 cm behind the mirror when the object is located 760 cm in front of the
two forces f1 135i-095jn and f2 -085i120jn are applied on a moving object of mass 030 kg the displacement vector
6 j of work is needed to push an object of mass 2 kg from point a to point b of the frictionless inclined plane as
the outside mirror on the passenger side of a car is convex and has a focal length of -60 m relative to this mirror a
a 100-g bullet traveling horizontally at 755 ms strikes a stationary target and stops after penetrating 145 cm into the
a constant force of 25 n is applied as shown to a block which undergoes a displacement of 75 m to the right along a
a concave mirror r 560 cm is used to project a transparent slide onto a wall the slide is located at a distance of 380
the image behind a convex mirror radius of curvature 72 cm is located 14 cm behind the mirrora where is the object
after falling from rest from a height of 31 m a 051-kg ball rebounds upward reaching a height of 21 m if the contact
in a skating stunt a number of skaters hold hands and form a straight line they try to skate so that the line rotates
problem about leonard-jones interaction energya commonly used potential energy function to describe the interaction
a 0029-kg bullet is fired vertically at 225 ms into a 015-kg baseball that is initially at rest how high does the
a pitcher delivers a fast ball with a velocity of 43 ms to the south the batter hits the ball and gives it a velocity
consider a two dimensional ideal gas of bosonsa find chemical potential exactly as a function of temperaturet for the
westerly winds coming off the pacific ocean rise over the rocky mountains which rise to a height of approximately 15000
a 1220-kg car traveling initially with a speed of 250 ms in an easterly direction crashes into the rear end of a
consider the triangle of charges diagrammed below for which d 2 cm q 2 nc and the x-axis points to the right what is
a rifle with a weight of 20 n fires a 30 g bullet with a speed of 260 msa find the recoil speed of the riflemsb if a