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A 34-cm-diametere potter's wheel with a mass of 20 kg is spinning at 180rpm. Using her hands, a potter forms a pot, centred on the wheel, with a 14 cm diameter. her hands apply a net friction force of 1.3 N to the edge of the pot. If the power foes out so that the wheel's motor no longer provides any torque, how long will it take for the wheel to come to a stop in her hands?
A mail bag with a mass of 100kg is suspended by a vertical rope of length 8.00m. What horizontal force is necessary to hold the bag in a position displaced sideways a distance 1.00m from its initial position
Two narrow slits separated by 0.51 mm are illuminated by monochromatic light of wavelength 670 nm. How many bright fringes can be seen on a screen 1.3 cm wide placed 1.1 m in front of the slits.
derive an expression for the shift in lambda in the peak wavelength of the planck function for a black body temperature
A bullet of mass 5.2 g is fired horizontally into a 7.1 kg wooden block at rest on a horizontal surface. At what speed is the bullet fired
an object is at a distance d to the left of a flath screen. A converging lens with focal length f
question explain why the color temperatures of the sun in bright sunlight and in the shade are different even though
An electron is accelerated through a potential difference of 3.00 V before colliding with a metal target. What minimum-wavelength light can such an electron emit
A Carnot engine whose high-temperature reservoir is at 680{\rm K} takes in 530{\rm J} of heat at this temperature in each cycle, What is the temperature of the low-temperature reservoir
question 1 a silver wire is 4.8 m long and 0.47 mm in diameter. what is its resistance?question 2 when a potential
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 1.30 m, are floating at rest on Space Station Freedom between two metal bulkheads.
Two adjacent natural frequencies of an organ pipe are found to be300Hz and330Hz. Calculate the fundamental frequency and length of this pipe
A weight lifter raises a 1109 N weight a vertical distance of 1.60 m in a time interval of 1.75 s. Compute the power provided by the weight lifter's force
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