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a cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 247 c boltzmanns constant is
a person pushes a 160 kg shopping cart at a constant velocity for a distance of 260m she pushes in a direction 200
the electric potential in a certain area is given as v 3x2 5yza what is the electric field in the areab if we place a
a horizontal vinyl record of radius014m rotates about a vertical axis through its center with an angular speed of 47
the model airplane in figure 57 is flying at a speed of 144 ms on a horizontal circle of radius 172 m the mass of the
a 60kg block of aluminum sits on the bottom of a tank of waterhow much force does the block exert on the bottom of the
weve seen that fish can control their buoyancy through the use of a swim bladder a gas-filled organ inside the body you
a human sprinter of mass 65kg starts a run at the maximum possible acceleration pushing backward against a block set in
a horse can maintain a top speed of 20ms for a long distance but has a maximum acceleration of only 60ms2if a horse
a pogo and rider of 80kg total mass at the high point of a 20m jump will drop 13m before the pogo plunger touches the
a ferris wheel with radius 140m is turning about a horizontal axis through its center the linear speed of a passenger
a steam locomotive uses the back-and-forth motion of a drive rod to turn its 145 m diameter wheel each compete
a puck with mass m 018 kg slides along a frictionless horizontal surface at v 63 ms it hits and sticks to the free
a proton accelerates from rest in a uniform electric field of 628 nc at some later time its speed is 110106 msa find
1 a block of mass m1 050kg placed in top of another block of mass m2 080 kg which rests on a frictionless surface a
the motor of a ski boat generates an average power of 594 times 104 w when the boat is moving at a constant speed of
a semi-trailer is coasting downhill along a mountain highway when its brakes fail the driver pulls onto a runaway truck
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult the
a 1060-kg van stopped at a traffic light is hit directly in the rear by a 794-kg car traveling with a velocity of 390
a wagon is rolling forward on level ground friction is negligible the person sitting in the wagon is holding a rock the
a brand of earplugs reduces the sound intensity level by 28db by what factor do these earplugs reduce the acoustic
football players measure their acceleration by seeing how fast they can sprint 40 yards 37m a zippy player can from a
a 198 nf capacitor with an initial charge of 455 microc is discharged through a 123 k resistora calculate the current
a 100kg football player is moving at 58ms to the east a 140kg player is moving at 52ms to the west they meet each
a track has a height that is a function of horizontal position x given by hx x3 4x2 37x 16find all the positions on