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a running house cat has 135 j of kinetic energy at speed vat what speed in terms of v will she have 270 j of kinetic
a 1089-kg car and a 2210-kg pickup truck approach a curve on the expressway that has a radius of 229 mat what angle
calculate the shortest wavelength that will be emitted from an x-ray tube in which the electron beam has been
one problem for humans living in outer space is that they are apparently weightless one way around this problem is to
you are driving with a friend who is sitting to your right on the passenger side of the front seat of your car you
the asteroid 243 ida has a mass of about 40times1016 kg and an average radius of about 16 km its not spherical but you
the mass of the venus is about 082 the mass of the earth its radius is 095 that of the earth and the acceleration due
a 2920 kg satellite used in a cellular telephone network is in a circular orbit at a height of 800 km above the surface
you tie a cord to a pail of water and you swing the pail in a vertical circle of radius 0800 mwhat minimum speed must
a 530 kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing her course to a
a highway curve with radius 850 ft is to be banked so that a car traveling 480 mph will not skid sideways even in the
a stone with a mass of 0900 kg is attached to one end of a string 0800 m long the string will break if its tension
forensic scientists can measure the muzzle velocity of a gun by firing a bullet horizontally into a large hanging block
a 500 g bullet traveling horizontally at 460 ms is shot through a 200 kg wood block suspended on a string 300 m longif
two identical 140 kg masses are pressed against opposite ends of a spring of force constant 170 ncm compressing the
a 550 kg ornament is hanging by a 140 m wire when it is suddenly hit by a 300 kg missile traveling horizontally at 120
on a highly polished essentially frictionless lunch counter a 0520 kg submarine sandwich moving 315 ms to the left
a 515 kg chunk of ice is sliding at 135 ms on the floor of an ice-covered valley when it collides with and sticks to
block a has mass 120 kg and block b has mass 29 kg they are forced together compressing spring s between them then the
two blocks each with weightw are held in place on a frictionless incline in terms ofwand the angleaof the incline
a model rocket rises with a constant acceleration to a height of 32m at which point its speed is 26ms how much time
a body of mass 29 kg makes an elastic collision with another body at rest and continues to move in the original
a force in the negative direction of an x axis is applied for 24 ms to a 040 kg ball initially moving at 10 ms in the
in february 1955 a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in
a rocket blast off and moves strait upward from the launch pad with a constant acceleration after 30s the rocket is at