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Hint: Find the work done by the force acting on the string (you know the F and d) and set that equal to the KE of rotation for the top. A top has a moment of inertia of 3.13 ×10-4kg · m2 and is initially at rest. It is free to rotate about a vertical stationary axis. A string around a peg along the axis of the top is pulled, maintaining a constant tension of 3.70 N in the string. If the string does not slip while it is wound around the peg, what is the angular speed of the top after 58.1 cm of string has been pulled off the peg? Answer in units of rad/s.
When 5.0 g of steam at 100.C is added to some water at 20 C inside an insulated container, the final temperature of all the water is 40 C. What was the mass of the water at the beginning
formula use in nuclear plant? what can i talk about with nuclear plant. i am doing a report about chernobyl disaster
What is the electric potential energy of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.)" Use = 8.85 10 12 for the permittivity of free space.
Three capacitors having capacitances of 8.7%u03BCF , 8.7%u03BCF , and 4.1%u03BCF are connected in series across a 31-V potential difference. What is the total energy now stored in the capacitors
steam enters a turbine operaing at steady state at 700of and 450 psi and leaves as a saturated vapor at 1.2 psi. the
An unknown capacitance C is in series with a 3.0uF capacitor. This pair is in parallel with a 1.0uF capacitor, Make a circuit diagram for this Network
In a traveling electromagnetic wave, the electric field is represented mathematically asE = E0 sin[(2.0 × 1010 s-1)t - (5.3 × 101 m-1)x], What is the frequency of the wave
A child of mass 30 kg stands at the edge of a merry-go-round of mass 130 kg and radius 2.3 m, and both are initially at rest. How far does the child walk as measured relative to the merry-go-round
a child is swinging on a swing set. if the chains holding the swing are 5m long, how fast will the child be moving at the lowest point in the swing
What is the car's acceleration during the first 4.30 s. What is the car's acceleration during the last 5.20 s?
An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. What was the tension in the cable
When Neil Armstrong was on the moon he used a spring scale to measure the mass of several rocks. What is its actual mass
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