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A 160 kg horizontal beam is supported at each end. A 300 kg piano rests a quarter of the way from one end. What is the vertical force on each of the supports?
You hang the rod vertically and attach a 74 kg mass to the bottom, and you observe that the bar becomes 1.74 cm longer. From these measurements, it is possible to conclude the stiffness of one interatomic bond in titanium.
A horse draws a sled horizontally on snow at constant speed. The horse can produce a power of 1.155 hp. find the speed with which the sled moves across the snow
Water at a gauge pressure of P = 4.8 atm at street level flows into an office building at a speed of 0.98m/sthrough a pipe 5.6 cm in diameter. Calculate the gauge pressure in the pipe on the top floor
Water flows at a rate of 21 through a horizontal 8.0--diameter pipe under a pressure of 10.6 . At one point, calcium deposits reduce the cross-sectional area of the pipe to 28 . What is the pressure at this point? (Consider the water to be an ideal f..
Suppose a heat engine pulls 3.37×104 J of work from the hot reservoir and 7.52×103 J of that energy is used to perform work. How much energy is rejected by the engine? (This energy is "exhausted" to the cold reservoir.) What is the efficiency of the ..
Light of 550nm is incident on two slits. A maximum is seen at an angle of 4.10 degrees and a minimum at 4.78 degrees. What is the distance between the slits
A flat, round iron ring 7.00cm in diameter has a current running through it that produces a magnetic field of 77.2?T at its center. find the maximum torque the external field can exert on the ring
A lens of focal length 15.0 cm is used to create an image of the Full Moon. What is diameter of the image
You have a cylindrical cup of water that springs a leak 5 cm below the surface of the water. What is the velocity of the water coming out of the hole
a 1.00 x 10^4 kg railroad car is rolling at 6 meters per sec. What is the cars speed just after gravel is loaded
On earth, two parts of a space probe weigh 13500 N and 3790 N. These parts are separated by a center-to-center distance of 14.4 m, Find the magnitude of the gravitational force
A slender rod with a length of 0.300m rotates with an angular speed of 9.00 rad/s about an axis through one end and perpendicular to the rod. What is the induced emf in the rod
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