Answer:
Sound is produced when an object vibrates, creating a pressure wave. This pressure wave causes particles in the surrounding medium (air, water, or solid) to have vibrational motion. As the particles vibrate, they move nearby particles, transmitting the sound further through the medium. The human ear detects sound waves when vibrating air particles vibrate small parts within the ear.
In many ways, sound waves are similar to light waves. They both originate from a definite source and can be distributed or scattered using various means. Unlike light, sound waves can only travel through a medium, such as air, glass, or metal. This means there’s no sound in space!
Explanation:
The lord of the greeks answer d
Solution :
Let us consider the Gaussian surface that is in the form of a cylinder having a radius of r and a length of A which is 
.
The charged enclosed by the cylinder is given by,
(here, V = 
is the volume of the cylinder)
If 
is positive, then the electric field lines moves in the radial outward direction and is normal to Gaussian surface which is distributed uniformly.
Therefore, total flux through Gaussian cylinder is :
Now using Gauss' law, we get
or 
Therefore, the electric field is
Hence, option (d) is correct.
Answer:
Gravitational potential energy is the greatest
Explanation
It is the highest point of a roller coaster.
