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a hot- air balloon is ascending at the rate of 12ms and is 80 m above the groundnbsp when a package is dropped over the
find what is the spring constant of a spring that stretches 200 centimeter when a mass of 0600 kilogram is suspended
a river flows due east at 15 ms a boat crosse the river from the south shore to the north shore by maintaining a
a roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r a passenger feels the
a photographer in a helicopter ascending vertically at a constant rate of 105ms accidentally drops a camera out of a
if 520 centimeter of copper wire diameter 100 millimeter is formed into a circular loop and located perpendicular to a
suppose a ball rolls off a horizontal table and lands 15m out from the edge of the table if the table k top is 90 cm
a child of mass m is released from rest at the top of a water slide at height h 85 meter above the bottom of the slide
a 60 centimeter tall cylinder floats in water with its axis perpendicular to the surface the length of the cylinder
an 80 kilogram spacewalking astronaut pushes off a 640 kilogram satellite exerting a 100 newton force for the 050
a 1320-kilogram car moving with a speed of 150 ms is on a flat circular curve having a radius of 570 metershow much
a ballot box with mass m 60 kilogram slides with speed v 40 ms across a frictionless floor in the positive direction
a sled slides without friction down a small ice covered hill if the sled starts from rest at the top of the hill its
a 330 newton sphere 020 meter in radius rolls without slipping 60 meter down a ramp that is inclined at 28 degree with
a 440 n uniform rectangular sign400 m wide and 300 m high is suspended from a horizontal600-m-long uniform 90-n rod as
a bicycle wheel has a diameter of 639 centimeter and a mass of 187 kilogram suppose that the wheel is a hoop with all
two nist sites have given the wavelengths of red light from a he-ne laser to be 63299139822 nanometer in vacuum and
a 225 gram arrow is shot vertically into the air from an initial height of 140 meter above the ground with an initial
a girl of mass 42 kilogram throws a ball of mass 05 kilogram against a wall the ball strikes the wall horizontally with
the distortion of the earths crust is example of shear stress on large scale a particular crust has a shear modulus of
a large man is sitting on a four legged chair with his feet on the floor the combined mass of the man and the chair is
in a large centrifuge used for training pilots and astronauts a small chamber is fixed at the end of a rigid arm that
a wire made from copper with a cross-section of diameter 0890 millimeter carries a current of 130 amp determine the
the mirrors of a fabry-perot resonator for a laser are coated to give a reflectance of 099 and they are separated by a
two narrow parallel slits illuminated by yellow sodium light lambda 589 nanometer are found to produce fringes with a