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the tires of a car make 55 revolutions as the car reduces its speed uniformly from 86kmh to 50kmh the tires have a
what is the launch speed of a projectile that rises vertically above the earth to an altitude equal to 14 before coming
a pendulum consists of a uniform disk with radius 10 cm and mass 350 g attached to a uniform rod with length 500 mm and
a 34cm diameter wheel accelerates uniformly about its center from 130rpm to 370rpm in 48sa determine its angular
suppose the asteroid starts from rest at a great distance effectively infinity falling toward earth how much work would
a steel wire 410m long has a mass of 610times102 kg and is stretched with a tension of 1260n what is the speed of
a stamp collector views a 15 cm tall stamp through a magnifying glass the magnifying glass is a converging lens with a
a fisherman notices that his boat is moving up and down periodically owing to waves on the surface of the water it
a 19-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling the elastic
the length of a simple pendulum is 085 m and the mass of the particle the bob at the end of the cable is 029 kg the
an unknown gas is introduced into the aforementioned apparatus using the same tuning fork and the first resonance
a spherical balloon of volume 394 103 cm3 contains helium at a pressure of 115 105 pa how many moles of helium are in
a 054-kg block is hung from and stretches a spring that is attached to the ceiling a second block is attached to the
a spring lies on a horizontal table and the left end of the spring is attached to a wall the other end is connected to
a certain refrigerator is rated as being 33 as efficient as a carnot refrigerator to remove 107 j of heat from the
a ball of mass m traveling horizontally with velocity v strikes a massive vertical wall and rebounds back along its
a boy whirls a stone in a horizontal circle of radius 17 m and at height 22 m above ground level the string breaks and
an earth satellite moves in a circular orbit 660 km above the earths surface the period of the motion is 977 min what
a rotating fan completes 1200 revolutions every minute consider a point on the tip of a blade at a radius of 016 m
a college student is working on her physics homework in her dorm room her room contains a total of 6x 1026 gas
water flows at 0855 ms from a hot water heater through a 450-kpa pressure regulator the pressure in the pipe supplying
a container holds 090 g of oxygen at a pressure of 77 atm a how much heat is required to increase the temperature by
when a human hair is held in front of a laser a diffraction pattern is formed 150 m away from the hair the first dark
deuterium is an attractive fuel for fusion reactions because it is abundant in the waters of the oceans in the oceans