The speed of sound in a solid would be 6000 metres per second
Answer: False
Explanation:
It's received in elliptical cavities.
Answer:

Explanation:
As we know that ball travels horizontal distance of 24.7 m with uniform speed 49.4 m/s
so we will have



now in the same time ball is turned by angle

now we know that



now the tangential speed of a point at equator is given as



The best conclusion that can be drawn is that D) A current does not flow in the wire