Acceleration = change in velocity/change in time
so...
a = 20 m/s / 2 seconds
a = 10
hope that helps :)
They choose the ones who talk the most and could be seen as leaders
Answer:
The new velocity of the string is 100 centimeters per second (1 meter per second).
Explanation:
The speed of a wave through a string (), in meters per second, is defined by the following formula:
(1)
Where:
- Tension, in newtons.
- Length of the string, in meters.
- Mass of the string, in kilograms.
The expression for initial and final speeds of the wave are:
Initial speed
(2)
Final speed
(3)
By (2), we conclude that:
If we know that , then the new speed of the wave in the string is .