A 0.35 kg ball is swung around a tether pole where the 1.4 m rope makes a 30° angle to the pole. What is the force of tension in the rope for the ball to have a circular speed of 3.1 m/s?
[5 marks] * the motion is around horizontally so it sweeps out a conical shape

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Heat capacity = mcδtheat capacity = 2.676×10^3 j ..the heat capacity given is for 7.00 g of kcn,potassium cyanide which is equal to 0. mole of mole = mass  ÷ mr of kcn is 7  ÷ 65 =0.therefore: 0. of kcn liberates 2.676×10^3 j of heat1 mole   (2.676×10^3    ÷  0.107 )  × 1 =do the calculation to obtain 25009 j = 25kj