Which of the following is an example of mechanical control of nonnative species? a. pesticides b. herbicides c. net barriers d. inspections

c, 1a hope this

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this