A student measured four electromagnetic waves of different frequendles and wavelengths.

Which electromagnetic wave has the
most
energy?
A wave 1
B. wave 2
C. wave 3
D. wave 4

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above