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a 195-kg boy slides down a playgroundslide that drops through a height of 232m if the boy starts at rest at the top of
two 40 cm times 40 cm electrodes spaced 20 mm apart form aparallel-plate capacitor inside the capacitor the electric
a spacecraft moving away from earth emits a 4496 hz signal ascientist on earth measures the signal to be 4494 hz what
a large storage tank open to the atmosphere at the top and filledwith water develops a small hole in its side at a
a force of 315n is applied horizontally to a wooden crate in order to displace it 35m across a level floor at a
an apartment has the dimensions 8m by 5m by 3m thetemperature is 25 degrees c and the relative humidity is60a how much
two balls hit in an elastic collision both balls initially have the same speed but opposite directions before the
on a summer day in houston the temp is 35 degrees c and therelative humidity is 75a what is the humidityb to what
a skier coasts down a very smooth 10-m-high slope if the speed of the skier on the top of the slope is 50 ms what is
a volleyball spiked so that its incoming velocity of 40msis changed to an outgoing velocity of -21ms the mass of
when landing from jumping up a person should bend hisknees to avoid injury a 75kg man just before contact withthe
a 30-g bullet traveling at 350 ms hits a tree and slows down uniformly to a stop while penetrating a distance of 12 cm
a particular spring has a force constant of 25 x 103nma how much work is done in stretching the initially-relaxedspring
a gas is compressed inside a cylinder an average force of 100n acts to move the piston 02m during the compresion 5j of
a baesball of mass 75gram is traveling 40ms when it is caught incatching the ball a player moves his mit backward
during the investigation of traffic accident police find skid marks90metres long and the final velocity to be zero they
when a 0045 kg golf ball takes off after being hit its speedis 41msa how much work is done on the ball by the clubb
a 240102 n force is pulling a refrigerator across ahorizontal surfacethe force acts at an angle of 200degree abovethe
a student could either pull or push at an angle of30o from the horizontal a 50-kg crate on a horizontalsurface where
a 10 kg hollow ball with a radius of 008 m filled with air isreleased from rest at the bottom of a 22 m deep pool of
the height of the upper falls at yellowstone falls is 322m when the water reaches the bottom of the falls its speed is
in waterjet cutting a stream of supersonic water is used toslice through materials ranging from sheets of paper to
a golf ball is hitwith an initial velocityof 600 ms at an angle of 30 degress abovethe horizontal how far does it
during morning jogging a man walks 10 turns of a rectangularground of length 30 metre and breadth 15 m in 15 minutes
a boy pulls a box of mass 30 kg with a force of 25 nin a direction from left to righta ignoring friction of the box