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An 8.61 kilogram block of ice at 0°C is sliding on a rough horizontal ice house floor (also at 0°C) at 15.4m/s. Assume that half of any heat generated goes into the floor and the rest goes into the ice. Find gow much ice melts after the speed of the ice has been reduced to 10.5 ? And Determine the maximum amount of ice that will melt?
A square plate has a side length of 1.2 m. An applied torque of 300 N•m gives the plate an angular acceleration of 4.8 rad/s2 about an axis through the centre of the plate
Two kids are on a merry-go-round. The boy, located 3m from the center of the merry-go-round, is feeling a centripetal acceleration of 2 m/s2. What is her centripetal acceleration
A 3.3-m-diameter merry-go-round with rotational inertia 100kg?m2 is spinning freely at 0.60rev/s. Determine the total energy lost to friction
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 9.6 m and, in starting, rotates according to ? = 0.34t^2, find the magnitudes of the astronaut's angular velocity
Emilie's potter's wheel rotates with a constant 2.00rad/s2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.60s interval
An ice sheet with area 10:0 m x 10:0 m and uniform thickness of 1.20 m floats in the Arctic Ocean. Assume that the density of ice is 917 kg/m3, Find the buoyant force acting on the ice sheet
A rocket is launched a t an angle of 53.0 degrees to the horizontal at 360 km/h and moves along a straight line with a total constant acceleration of 30.0 m/s^2 for 3.00 s. obtain the maximum height reached by the rocket
The plot below shows the acceleration of a mouse in a long, straight burrow as a function of time; the velocity and the x-coordinate of the mouse at time t=0 are both zero. find the velocity of the mouse at time t=2s
a heat engine is being designed to have a carnot efficiency of 73 when operating between two heat reservoirs.a if the
A contact lens is made of plastic with an index of refraction of 1.58. The lens has an outer radius of curvature of +1.99 cm, What is the focal length of the lens
The wheels of an automobile are locked as it slidees to a stop from an initial speed of 26.7 m/s, how long does it take the car to stop
the lowest tone to resonate in an open pipe of length l is 200 hz. which one of the following frequencies will not
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