Answer: The options are not given,
Here are the options.
A. channel
B. feedback
C. message
D. sender
The correct option is C
MESSAGE.
Explanation:
It is message because it is written or verbal or recorded words or communication or ideas transmitted by the sender to the receiver.
It include three aspects, content, structure and style.
The content entails the information and communication, how the information is important, useful and can be read to comprehend.
The structure of a message entails the tone .
The style include how the sender compose and write the message.
Answer:
500km per hour
Explanation:
if in 2 hours the airplane flies 1000 km then 1000 divided by 2 is 500km per hour.

<u>Explanation:</u>
Velocity of B₁ = 4.3m/s
Velocity of B₂ = -4.3m/s
For perfectly elastic collision:, momentum is conserved

where,
m₁ = mass of Ball 1
m₂ = mass of Ball 2
v₁ = initial velocity of Ball 1
v₂ = initial velocity of ball 2
v'₁ = final velocity of ball 1
v'₂ = final velocity of ball 2
The final velocity of the balls after head on elastic collision would be

Substituting the velocities in the equation

If the masses of the ball is known then substitute the value in the above equation to get the final velocity of the ball.
Answer:
Unbalanced forces are not examples of Newton's third law because not all opposite reactions are unbalanced forces.
Explanation: