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1) A string can exert a 4.93 N force wothout breaking. The string is used to whirl a 1.48 kg mass in a horizontak circle

1) A string can exert a 4.93 N force wothout breaking. The string is used to whirl a 1.48 kg mass in a horizontak circle with a radius of 0.89m. What is the acceleration of the mass? 2) what is the force of gravitational attraction between 2.6 x 10^8 kg super tankers moored so that their centres are located 80m apart? 3) the waves that preceed the wavelength (1) of 1.40m, while those that trail the source have a wavelength (2) of 1.80m. If the speed of sound in air is 326m/s, what is the true frequency of the source

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