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a dentists drill starts from rest after 35 seconds ofconstant angular acceleration it turns at a rate of 251x104revmina
a transport plane takes off from a level landing field withtwo gliders in tow one behind the other the mass of each
a rotating door is made from 4 rectangular glass panes the mass of each pane is 85 kg a person pushes on the outeredge
a particle at rest of mass 900 mevc2 decays into three particles of equal rest mass of 100 mevc2 given that two of the
a small button placed on a horizontal rotating platform withdiameter 0320m will revolve with the platform when it is
two ball of equal masses ma 40g and mb 60g are suspendedas shown the lighter ball is pulled away to a 60degree
with the engines off a spaceship is coasting at a velocity of220 ms through outer space the ship carries rockets
the smallest angle of scattering of 32 nm x-rays from a crystal is35o measured from the surface of the crystala what is
a solid aluminium cube 20 cm on an edge floats face-down onmercury how much higher on the cubes sides will the mercury
the speed of the vaccine p1100 kgm3 is held in a reservoirwhere a high pressure pushes it out the pressure on the
a 70-kg log falls from a height of 25 m into a lake if thelog the lake and the air are all at 300k find the change
a person stands in a stationary canoe and throws a 522 kgstone with a velocity of 820 ms at an angle of 340 degrees
a copper wire is stretched uniformly maintaining constantdensity and resistivity so that it is ten times its
an elevator has a mass of 1200kg and has cables which arerated at no more than 982 e04 n of tension the elevator
a potters wheel moves from rest to an angular speed of022 revs in 30 s find its angular acceleration in radians per
a 100 kg mass is placed on a 250 degree incline and frictionkeeps it from sliding the coefficient of static friction
a person holds a book 25 cm in front of the effective lens ofher eye the print in the book is 15mm high if the
an rlc circuit is used to tune a radio into an fm stationbroadcasting at 885 mhz theresistance in the circuit is 120
one type of slingshot can be made from a length of rope and aleather pocket for holding the stone the stone can be
a pendulum clock with a pendulum made of brass isdesignd to keep accurate at temperature 20 dgreecelcius if the clock
a rectangular coil consists of n100 closely wrapped turns and hasdimensions a0400m and b0300m the coil is hinged along
a 20 kg projectile is fired at an angle of 60 degrees abovehorizontal with a speed of 80 ms at the highest point of
anelastic conducting material is stretched into a circular loop of150 cm radius it is placed with itsplane
suppose a star the size of our sun but of mass 80times as great were rotating at a speed of 10 revolution every11 days
a softball player swings a bat accelerating it from rest to35 revs in a time of 020 s approximate the bat as a 22 kg