Answer:
Wave interference is the phenomenon that occurs when two waves meet while traveling along the same medium. The interference of waves causes the medium to take on a shape that results from the net effect of the two individual waves upon the particles of the medium.
Explanation:
Solve the equation.it is hard to see
Answer:


Explanation:
Impulse and Momentum
They are similar concepts since they deal with the dynamics of objects having their status of motion changed by the sudden application of a force. The momentum at a given initial time is computed as

When a force is applied, the speed changes to
and the new momentum is

The change of momentum is

The impulse is equal to the change of momentum of an object and it's defined as the average net force applied times the time it takes to change the object's motion

Part 1
The T-ball initially travels at 10 m/s and then suddenly it's stopped by the glove. The final speed is zero, so

The impulse is


The magnitude is

Part 2
The force can be computed from the formula

The direction of the impulse the T-ball receives is opposite to the direction of the force exerted by the ball on the glove, thus 


<span> the speed of sound in air is directly proportional to the temperature of the air. The speed of sound depends on the temperature of the surrounding air, this can be represented by a speed of sound in air formula: v = 331m/s + 0.6m/s/C * T (where T is temperature)</span>