Two speakers, S1 and S2, operating in phase in the same medium produce the circular wave patterns shown in the diagram below. The dashed lines represents crests and the block lines represents the troughs of the waves produced. At which two points is constructive interference occurring? A and B

A and D

B and C

B and D

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

thermal energy is the answer

d. platinum would have the greatest temperature increase because it has the lowest specific heat.