L1 =1/4 h, L2= 3/4h, L3= 5/4h , L4= 7/4h Above written equation provide a means to determine the end correction for the tube. Using the value of the average h for the first tuning fork, calculate values for L1 and L2 from those equations. They should be larger than the measured values by an amount equal to the end correction. Repeat the calculation for the second tuning fork. Compare these values for the end corrections and comments on the consistency of the results.

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The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.