is equal to its final horizontal velocity
bez both upward and downward motions are identical in presence of single force called gravitational force which acts in y axis direction and horizontal velocity is in x axis so net force on horizontal velocity is zero
I believe the answer is A. Have a blessed day.
The component that could Chang leave out and still light up the bulb is the switch.
This is the Doppler effect.
1. As the sound leaves the horn the sound waves are at first close to each other and as they move outwards they become further apart. The closer the sound waves are the louder the noise.
As the car gets the closer the sound waves get closer, so the horn becomes louder.
2. As the horn moves away, the sound waves become less frequent, causing the pitch to get lower.
Answer:
24 N
Explanation:
= mass of the cube = 
Consider the three cubes together as one.
= mass of the three cubes together = 
= acceleration of the combination = 2 ms⁻²
= Force applied on the combination
Using Newton's second law

= Force by the left cube on the middle cube
Consider the forces acting on left cube, from the force diagram, we have
