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the person shown below is pushing on a refrigerator that sits on a level floor assume the floor is very slippery so
a kicker punts a football from the very center of the field to the sideline 37 yards downfield a football field is 57
a photographer in a helicopter ascending vertically at a constant rate of 125 ms accidentally drops a camera out the
a uniformly charged ring of radius 102 cm has a charge of 875 microca find the electric field on the axis of the ring
a car speeds up from 50 mph to 65 mph to pass a truck if this requires 7 seconds what is the average acceleration of
a rock is dropped into an abandon mine and a splash is heard 10 s later assuming that it takes negligible time for the
calculate the diffusion coefficient for the diffusion of carbon in gamma-iron at 1x103 degrees celsius express your
you are driving your car and the traffic light ahead turns red you apply the brakes for 256 s and the velocity of the
a 139-g mass is suspended 133 cm above a nonconducting flat plate directly above an embedded charge of qa if the mass
when jumping a flea reaches a takeoff speed of 12 ms over a distance of 045mma what is the fleas acceleration during
a playground is on the flat roof of a city school 46 m above the street below see figure the vertical wall of the
one afternoon a couple walks three-fourths of the way around a circular lake the radius of which is 146 km they start
in a rectangular coordinate system a positive point charge q 600 10-9 c is placed at the point x 0150m y 0 and an
a a small ball with a mass of 006 kg moves along a circular orbit with a radius of 05 m at a speed of 30 ms what is the
a plane diving with constant speed at an angle of 540deg with the vertical releases a projectile at an altitude of 890
shavingmake-up mirrors typically have one flat and one concave magnifying surface you find that you can project a
find the electric field at the center of a square of side d 10 cm with charges of q 90 microc at each cornerfind the
a carpet is to be installed in a room of length 874 m and width 58 m find the area of the room retaining the proper
two capacitors c1 600 microf and c2 140 microf are connected in parallel and the resulting combination is connected
an electron beam is deflected upward through 25 mm while traveling in a vacuum between two deflection plates 124 mm
four identical metallic objects carry the following charges 168 603 -464 and -966c the objects are brought
a hot-air balloonist rising vertically with a constant velocity of magnitude 500ms releases a sandbag at an instant
the total electric field consists of the vector sum of two parts one part has a magnitude of e1 1200 nc and points at
two vectors a and b are added by means of vector addition to give a resultant vector rrab the magnitude of a and b are
a uniform electric field exists in the region between two oppositely charged plane parallel plates an electron is