Is gravitational force is independent of nature of intervening medium?
The gravitational force is a non-central force. The gravitational force is independent of the intervening medium. In other words, the force between two masses remains the same whether they are in air, vacuum, water or separated by a brick wall. The gravitational force is a central force.
Which force is independent of medium?
gravitational force
Does electromagnetic force require a medium?
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
Why does my hair feel so coarse?
Whether it’s the dryer or flat iron, daily heat to the hair will strip the hair of moisture. This causes quite a bit of unnecessary damage that can be easily avoided. As you age, your hair naturally makes less oil. Gray hair becomes coarser, dry and rebellious due to the lack of essential nutrients, minerals and oils.
Is Curly Hair fine or coarse?
Hair that’s straight as a board can be coarse — read: thick — while the tightest curl pattern can be found on fine strands. Curly hair bends and turns along the entire length of the strand and can take on several patterns, such as spiral, corkscrew and coily — all on the same head of hair.
What is the strongest hair type?
Thick or coarse hair texture is the strongest hair texture and typically feels coarse or thick to the touch. Coarse hair contains all three hair layers – the cortex, cuticle and medulla.
Is curly hair always coarse?
“A general rule of thumb is if one hair strand is thicker than a piece of thread, it’s considered coarse. Both straight hair and curly hair can be coarse if the strands are thicker than the normal size. These strands are also typically less pliable and get naturally drier than other hair types.”
Why is my hair curly underneath but straight on top?
Yes – hair can be naturally this straight and this curly on the same head! It’s very normal to have a mix of curl patterns on the same head of hair. It starts with your genetics. It can remain dormant until activated and then it changes the shape of the hair follicle which changes the hair that grows from it.
Why is my hair curly when wet but straight when dry?
Hair that is wavy when wet but dries straight is naturally wavy hair that is being weighed down or stretched out. This may be from water weighing hair down as it dries, or from hair being brushed or combed. Often wavy hair needs support from gel or mousse to maintain its texture as it dries.