To melt tin taken at 15 degrees, 600g of kerosene was burned. Determine the mass of tin if at each time only half of the energy released by burning kerosene was transferred to tin. pls help❤️

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.