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a 70-kg object undergoes an acceleration of 27 ms2a what is the magnitude of the resultant force acting on itnb if this
the fastest martial arts punch is 433 mph 696 kmh and was achieved by john ozuna united states at ko kung fu karate san
if you lie on the ground at night with no cover you get cold rather quickly much of this is due to energy loss by
in a hydraulic lift if the radius of the smaller piston is 20 cm and the radius of the larger piston is 200 cm what
a hole punch has a diamter of 80 mm and presses onto ten sheets of paper with a force of 67 kn if each sheet of paper
a steel cable of diameter 30 cm supports a load of 20kn what is the fractional length increase of the cable compared
a heat pump uses 100 j of work to output 150 j of heat at some temperature what is the heat that is withdrawn from some
a 16 cm-diameter compressed-air tank is 30 cm tall the pressure at 20 degrees c is 140 atmwhat is the number of moles
a 300 mass on a spring has displacement as a function of time given by the equation find the maximum magnitude of force
a turntable 190 in diameter rotates at 760 two speakers each giving off sound of wavelength 311 are attached to the
a ball is thrown vertically upward with an initial speed of 196 ms sketch a graph for the position velocity and
a us penny has a diameter of 19000cm at 200 c the coin is made of a metal alloy mostly zinc for which the coefficient
you are given a sample of metal and asked to determine its specific heat you weigh the sample and find that its weight
a rigid container holds 27mol of gas at a pressure of 26atm and a temperature of 50 cwhat is the containers volumewhat
the surface area of an adult human is about 18 m2 suppose a person with a skin temperature of 34c is standing nude in a
a 0016-kg bullet traveling at 2036 ms east hits a motionless 19-kg block and bounces off it retracing its original path
a pitcher is employing a ballistic pendulum to determine the speed of his fastball a 33 kg lump of clay is suspended
a sports car traveling along a straight line increases its speed from 204 mih to 604 mihwhat is the ratio of the final
a figure skater is spinning at a rate of 18 revs with her arms outstretched she then draws her arms in to her chest
the top layer of your goose down sleeping bag has a thickness of 54cm and a surface area of 10 m2 when the outside
a typical nuclear reactor generates 1000 mw of electrical energy in doing so it produces waste heat at a rate of 2000
the x and y components of a displacement vector are -300 m and 400 m respectively what angle does this vector make with
medical labs often use centrifuges to separate the different components of blood or tissue in a centrifuge materials
a soccer player kicks a ball from ground level with an initial velocity of 25 ms at an angle of 30deg above the