A dolphin uses echo location to find fish. The fish are 22.5m away. a- What is the speed of sound in water if it is 0.03s between the dolphin emitting and
receiving the sound wave?

yall pls help me out here I got an exam tomorrow

If this plastic cup is heated to its melting point, what will eventually happen to all the particles in the plastic? a. the particles will begin to move enough that they slide past each other. b. bonds will form and the liquid will become a solid. c. the spaces between the particles will get smaller. d. the particles will change state and become a crystalline solid.

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be