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A skater spins with her arms extended at a speed of 11 m/s. If she then whips her arms in to her body to form a circle with a radius of 0.4 m and spins at a new speed of 24 m/s, what was the radius of the circle that she formed with her arms extended? (Assume net external torque is zero).
An ambulance passes a bus stop at 50m/s with a siren of 340Hz, What is the wavelength heard by the bus stop costumers as the ambulance approaches
A 70 g metal block moving at 200 cm/s slides across a tabletop a distance of 83 cm before it comes to rest. how much does the temperature of the block rise
A box is dropped from a spacecraft moving horizontally at 27.0 m/s at a distance of 155 m above the surface of a moon. The rate of freefall acceleration on this airless moon is 2.79 m/s2.
An airtight box has a removable lid of area 1.10 multiplied by 10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.80 multiplied by 105 Pa.
Do you agree with IBM's employment response to competition from software development contractors in India, like Wipro, that are expanding into IT consulting services? Why or why not.
A man standing on the ground throws a pebble with an initial veloctiy of 14m/s at an angle of 70 degrees above the horizontal, How high above the ground is the window
A standing wave on a 77.4cm long string has three antinodes. If the string has linear mass density 3.92×10?5kg/m and tension 10.1N , what are the wave's frequency
A uranium and iron atom reside a distance R = 59.70 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized. what is the magnitude of the force on the electron from the uranium ion
Two parallel metal plates separated by a distance of 2mm and each having an area of .5m squared carry equal, What potential difference exist between the plates
A train is rounding a circular curve whose radius is 200 m. At one instant, the train has an angular acceleration of .0015 rad/s2, Determine the angle of the total acceleration relative to the radial direction
A uniform beam of length L = 8.00 m and weight 5.35x10^2 N is carried by two workers, Determine the force that each person exerts on the beam
Shantel was the sole owner of the residence until it was sold. Explain how much of the gain may Shantel and Daron exclude?
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