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a block of wood weighs 160 newton and has a density that equals 60 that of seawater find what additional downward
on vacation your 1200 kilogram car pulls a 600 kilogram trailer away from a stoplight with an acceleration of 120 ms2
find what plate separation is required for a parallel plate capacitor to have a capacitance of 740 nf if the plate area
sam walks 040 kilometer in a direction 600o west of north then goes 050 kilometer due west determine what is his
a parallel plate capacitor has a plate area of 0535 m2 and a plate separation of 145 millimeter estimate what is its
a 20 kilogram mass hang from two ropes that are attached to the ceiling each rope makes an angle of 60o with the
a powerful bolt of lightning can carry a current of 225 kaa treating a lightning bolt as a long thin wire determine the
you are on a roof that is 15 m high and you are launching balloons off at an angle of 30o above the horizon with a
a crate is dragged 30 meter along a rough floor with a constant velocity by a worker applying a force of 500 newton to
a proton travels horizontally with speed 4 x 106 ms in a vertical uniform magnetic field of 15 tesla 15 x 104 gauss
a generator uses a coil that has 490 turns and a 075 t magnetic field the frequency of this generator is 600 hertz and
a 700 gram bullet when fired from a gun into a 120 kilogram block of wood held in a vise penetrates the block to a
a rod of length 250 centimeter has linear density mass-per-length given by the following equation where xnbspis the
the rope and the pulleys are mass less and there is no frictiona determine the tension in the rope andb determine the
an 800 gram bullet is fired into a 220 kilogram block initially at rest at the edge of a frictionless table of height
find what is a reasonable length of time for a normal person to run two meters from a dead stop to full speed
a 20 centimeter tall object is located in front of a mirror a 10 centimeter tall upright image is formed behind the
you have a new job designing rides for an amusement park in one ride the riders chair is attached by a 90 meter long
a spring mass system has a mass of 1 kilogram a spring constant of 6kgsec2 and a damping constant of 1kgsec if the mass
an airplane of mass 150 x 104 kilogram is moving at 600 ms the pilot then increases the engines thrust to 750 x 104 n
a mass less plank 500 meter long is supported at its ends by two ropes a man weighing 800 newton stands on the plank
a few bacteria are propelled by motors that spin hair-like flagella a typical bacterial motor turning at a constant
an arrow is fired with a speed of 200 ms at a block of styrofoam resting on a smooth surface the arrow penetrates a
cart c has mass 123 gram cart d had mass 345 gram the carts are on a frictionless track cart d is initially at rest
to throw the discus the thrower holds the discus with a totally outstretched arm and makes one revolution as rapidly as