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water waves approach an underwater shelf where the velocity changesfrom 28ms to 25ms if the incident wave crests make a
a dam on a fresh water lake has a rectangular shape with a width of 150 m if the water depth at the dam is 30 m what is
a rolling ball moves from x1 34cm to x2 -42cm during the timefrom t1 30s to t2 51s what is its average
in the figure 25-31 the battery has a potential difference ofv 100 v and the five capacitors each have a capacitanceof
the linear accelerator at stanford university slac is 200 mileslong and is used to accelerate electrons if an electron
angular projectile motion a 2-stage rocket is launched at an angle of 530deg above the horizontal with an initial speed
a spacecraft is moving past earth with a velocity of 07c it launches a rocket that moves in the same direction as the
a geodesic dome constructed with an aluminum framework is a nearlyperfect hemisphere its diameter measures 560 rm m on
light is observed to converge to a point after being reflected froma plane mirror were the incident rays parallel
a super nova releases 10times1045 j of energyit is 1670 ly from earth if you were facing the star in questionand your
a machines part rotates at an agular speed of 06rads itsspeed is then increased to 22rads at an angular acceleraton
a 150 turn conducting coil with a radius of 183cm rotates ata frequency of f 490hz in a magnetic field b 0230t
a circular coil with one turn is in a perpendicular timedependent magnetic field given by b 0400 -00800 t tesla where
illustrates how the forces can vary in problemsof this type a hiker who weighs 857 n is strolling through the woods and
a portion of a roller coaster track is described byh094x-0010x2 where h and x are height and horizontalposition in
a college student produces about 127 kcal of heat per hour onthe average what is the rate of energy production in
if rays of light come into glass and diamond surfaces at an angleof 30 degrees which rays will be bent more by
a college campus features a large fountain surrounded by a circularpool two students start at the northernmost point of
white light passes through a piece of crown glass and strikesan interface with air at an angle of 4115circ the index of
the figure shows a lower leg being exercised it has a 49-nweight attached to the foot and is extended at an angle with
tsunamis are fast-moving waves generated by underwater earthquakesin the deep ocean their amplitude is barely
a skier of mass 71 kg is pulled up a slopeby a motor-driven cablea how much work is required to pull him40 m up a 30deg
a cars speedometer converts the angular speed of the wheels to the linear speed of the car if the tires are 24 inches
one end of a wire is attached to a ceiling and a solid brass ball is tied to the lower end the tension in the wire is
an automobile weighing 105 x104 n has weight equally distributed overits wheels the weight of the car causes each tire