30. Energy from the sun reaches the earth though A Electromagnetic waves B. Infrared waves C. Mechanical waves D. Ultraviolet waves 31. Which of the following best describes a high frequency sound? It has ... C. low energy A. low pitch B. high pitch D. A and C 32. ROYGVIB is the basic component of white light. Which color of light carries the lowest frequency? A. Blue B. Red C. Green D. Orange 33. To most Filipinos, lechon is a part of every occasion. How does heat travel in roasting lechon? А. by conduction by convection C. by compaction D. by radiation В. 34. The figure shows three pairs of plate. The electrostatic force between the plates is shown for two of the pairs. If B is negative, what is the charge of A? What kind of force exists in the third nair? 5 A A. B. negative, attractive negative, repulsive C. positive, attractive D. positive, repulsive
[tex]need \: ko \: po \: \\ tamang \: sagot \: \\ [/tex]
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