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a triangular block is wedged between a wall and the ground on top rests a square block held stationary by friction
a projectile is fired straight upward at 166 ms determine how fast is it moving at the instant it reaches the top of
the pressure of air in your home can stay constant during the day if the temperature rises let the temperatures be 300
determine how many oxygen molecules do you inhale if you are at sea
two long conducting cylindrical shells are coaxial and have radii of 20 millimeter and 80 millimeter the electric
an astronaut leaves earth in a spaceship at a speed of 0280c relative to earth if the destination is a star system 125
consider a universe where the matter density is 0 and it has a significant cosmological constant lambda assume the
a pendulum consists of a 3 kilogram bob at the end of a 2 meter long light string suspending the bob from a pivot
a uniformly charged straight filament 700 meter in length has a total positive charge of 200 c an uncharged cardboard
assume you look at an object through a rectangular prism of thickness d and index of refraction n the object is placed
glycerin in water diffuses along a horizontal column that has a cross-sectional area of 2 cm2 the concentration
you are taking a photograph of a poster on the wall of your dorm room therefore you cant back away any farther than 20
a turbine operates adiabatically and at steady state with an ideal gas of constant cp as the working fluid the inlet
imagine an automobile tire that contains 51 moles of air when at a gauge pressure of 21times105 nm2 the pressure above
a 55 kilogram person holds a weight of 20 kilogram on his head obtain what is the work done by him against gravity if
determine the thermal energy dissipated from brakes in a 1600 kilogram vehicle that descends a 20 degree hill the
a 12 lp of mass 30 gram is dropped down the spindle onto a freely turning 12 turntable platter of mass 1 kilogram
a force of 1 newton is the only horizontal force exerted on a block and the horizontal acceleration of the block is
merry-go-round is at rest before a kid pushes it therefore that it rotates with a constant angular acceleration for 34
you pour 250 gram of tea into a styrofoam cup initially at 80oc and stir in a little sugar using a 100 gram aluminum
the pilot of an aircraft wishes to fly due west in a 50 kilometer per hour wind blowing toward the south the speed of
a helium-filled balloon has a volume of 0010 m3 the temperature in the room and in the balloon is 20oca obtain the
a 20 centimeter length of 026 millimeter diameter nichrome wire is welded into a circular loop the loop is located
the treasure map in the figure gives the subsequent directions to the buried treasure start at the old oak tree walk