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the british gold sovereign coin is an alloy of gold and copper having a total mass of 7988 g and is 22-karat gold a
a syringe has an area of 07 cm2 at its barrel and then narrows down to an area of 015 mm2 at the needle end if a force
assume that if the shear stress in steel exceeds about 400 108 nm2 the steel ruptures a determine the shearing force
1 suppose a flat roof has a surface area of 920000times101 m2 presume the air inside the building and under the roof is
a 6 ohm and 12 ohm resistor are connected in parallel to 36v battery what is the power dissipated by 60 ohm
a fire engine is driving directly away from a solid wall at 21 ms on a hot c day while its siren emits a steady 500 hz
the ropes in the figure are each wrapped around a cylinder and the two cylinders are fastened together the smaller
a 5 kg mass is connected to a spring 1000 nm platform which undergoes simple harmonic motion in the vertical direction
a 052 um thick soap film n141 in air is illuminated with white light in a direction perpendicular to the film for what
water at ground level is moving at a speed of 120 msec in a pipe at a pressure of 850 kpa the pipe goes up to the
a 12-v battery is connected across a device whose resistance is 24 ohms calculate the current in the wire what is the
a car with 52cm -diameter tires accelerates uniformly from rest to 20ms in 10s how many ties does each tire
a 14kg block and a 27kg block are attached to opposite ends of a light rope the rope hangs over a solid frictionless
a piccolo can be approximated as a tube that is open at both ends if a piccolo is 22 cm long what is the frequency of
consider an organ pipe 21 m long that is closed at one end and open at the other what is the fundamental frequency of
a horizontal 802-n merry-go-round is a solid disk of radius 144 m started from rest by a constant horizontal force of
at a grinding wheel has an angular velocity of 270 rads it has a constant angular acceleration of 250 rads2 until a
a regulation table tennis ball has a mass of 28g and is 40mm in diameter what is its moment of inertia about an axis
two cars collide at an intersection car with a mass of 1800 is going from west to east while car of mass 1300 is
an ac generator is to have a maximum output of 332 v each coil has an area of 0125 m2 and a resistance of 153 and
you are standing on a sheet of ice that covers the football stadium parking lot in buffalo there is negligible friction
olaf is standing on a sheet of ice that covers the football stadium parking lot in buffalo new york there is negligible
on a frictionless horizontal air table puck a with mass 0246 is moving toward puck b with mass 0370 which is
a catcher catches a 145 baseball traveling horizontally at 320 if it takes the ball 210 to stop once it is in contact
a solid sphere is rolling without slipping along a horizontal surface with a speed of 450 ms when it starts up a ramp