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a 96 kg man walks along a 50 kg horizontal plank which is 4 m long the plank is attached to a hinge mounted to one wall
a mass sitting on a horizontal frictionless surface is attached to one end of a spring the other end is fixed to a wall
a vertical solid steel post of diameter 21and length 290 is required to support a load of mass 8300 you can ignore
a 250-kg ball moving to the right at a velocity of 383 ms on a frictionless table collides head-on with a stationary
an object with mass 30kg is attached to a spring with spring stiffness constant k280nm and is executing simple harmonic
in the experiment you calculated the ratios of the measured distances ie the ratios of effort distanceload distance
find the minimum uncertainty in the speed of a bacterium hav-ing mass 30 x 10-15 kg if we know the position of the
the stanford linear accelerator can accelerate electrons to energies of 50 gev what is their de broglie wavelength
the isotope shift of spectral lines refers to the shift in wave-lengths or frequencies due to the different masses of
water flows through a 10cm diameter pipe into a 260l bathtub which it fills in 7mins what is the speed of the water in
suppose a 400-kg alligator of length 37 m is stretched out on a board of the same length weighing 95 n if the board is
common sports injuries result in the tearing of tendons and ligaments due to over stretching if the anterior cruciate
an atwoods machine consists of blocks of masses m1 110 kg and m2 210 kg attached by a cord running over a pulley as
the top has a moment of inertia of 470 10-4 kgmiddotm2 and is initially at rest it is free to rotate about the
an 836kg person with density 1055 kgm3 stands on a scale while completely submerged in water what does the scale
the position of a 300 object is given in meters by 5t3-79t2-45t where t is in seconds i need to finda what is the
two groups of canoeists meet in the middle of a lake after a brief visit a person in canoe 1 pushes on canoe 2 to
an experimental flywheel used to store energy and replace an automobile engine is a solid disk of mass 211 kg and
a 1300 car is approaching the hill shown in the figure at 130 when it suddenly runs out of gas what is the cars speed
a hot-air balloon is ascending at the rate of 13 ms and is 93 m above the ground when a package is dropped over the
the drawing shows a coin resting on the bottom of a beaker filled with an unknown liquid a ray of light from the coin
an energy storage system based on a flywheel a rotating disk can store a maximum of 44 when the flywheel is rotating at
a source emits sound uniformly in all directions there are no reflections of the sound at a distance of 12 m from the
a high-speed lifting mechanism supports a 845-kg object with a steel cable that is 400 m long and 400 cm2 in
assume that if the shear stress in steel exceeds about 400 108 nm2 the steel ruptures a determine the shearing force