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the figure shows three point charges of magnitude 20 muc30 muc 40 muc are located at the corners of a triangle the
two objects a and b are rubbed together as a result object a acquires an excess negative charge while object b becomes
a jet diving at an angle of 53o with the vertical releases a projectile at an altitude of 800 meter the projectile hits
a 20 kilogram toboggans with 700 kilogram driver is sliding down a frictionless chute directed 30o below the horizontal
the head of a 32 kilogram hammer moving at 52 ms strikes a nail and drives it into hardwooda the head stays in contact
a box of mass 80 kilogram is accelerated from rest across a floor at a rate of 30 ms for 60 s estimate what the net
assume you have a coil with 4000 turns and an average diameter of 200 centimeter determine the peak-to-peak induced emf
an engine absorbs 1702 j from a hot reservoir and expels 1198 j to a cold reservoir in each cycle1 what is the engines
assume another solar system with a star of the same mass as the sun suppose there is a planet in that solar system with
at an outdoor market a bunch of bananas is set into oscillatory motion with amplitude of 200 cm on a spring by a force
the period of motion of an object-spring system is 0249 s when a 4028 g object is attached to the spring what is the
a 30 gram dart is shot straight up at 80 ms at the same instant a 26 gram ball of cork is dropped from 27 meter above
a spring stretches 35-cm when a 5-g object is hung from it the object is replaced by a block of mass 24 g that
a little red wagon with mass 70 kilogram moves in a straight line on a frictionless horizontal surface it has an
a bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the
a softball of mass 0220 kilogram that is moving with a speed of 40 ms in the positive direction collides head-on and
a circus performer stretches a tightrope among two towers he strikes one end of the rope and sends a wave along it
a student drops two metallic objects into a 120 g steel container holding 150 g of water at 25degc one object is a 230
jane looking for tarzan is running at top speed 56 ms and grabs a vine hanging vertically from a tall tree in the
there is a thick walled hollow cylinder outer radius a inner radius b z axis is the height of the cylinder with its
a bird watcher meanders through the woods walking 162 km due east 163 km due south and 416 km in a direction 267
a segment of wire carries a current of 25 a along the x axis from x -20 m tox 0 and then along the z axis from z 0 to
an air-filled parallel-plate capacitor has a capacitance of 14 pf the separation of the plates is doubled and wax is
a model rocket is constructed with a motor that can provide a total impulse of 360 nbulls the mass of the rocket is
after elbow surgery a therapist examines the patientrsquos range of motion at full extension the angle among her