A student is studying a type of wave. Which question will help the student determine if it is an electromagnetic wave?
A
Is it a seismic wave?

B
Is it a sound wave?

C
Is it a water wave?

D
Is it a light wave?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Which composition of water moves to begin a deepwater current?

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.