The speed of sound in air doesn't depend on the frequency of the sound. It depends on the temperature, pressure, and humidity of the air. It's usually around <em>340 m/s</em> .
This leads to better balance and stability, whether on the playing field or in daily activities. In fact, most sports and other physical activities depend on stable core muscles.
Answer:
d. All three statements are true.
Explanation:
In the metals the electrons are the charge carriers and they are the only mobile charges causing the flow of current when subjected to potential difference.
The electrons being negatively lead to the flow of current in opposite direction. The direction of the current is opposite to the direction of the negative charges.
Answer: Plot each graph on the same coordinate system.
35 (
m/
s)
50
m
a
v
t.
Let , speed of bowling ball is v .
Time taken by ball to hit the pins , .
Speed of sound , u = 343 m/s .
Time taken by sound to reach ear , .
Now ,
Time taken by sound to hear after release :
Hence , this is the required solution .