Question

8.
Differentiate between atmosphere and atmospheric pressure.
9.
Differentiate between friction and contact force.
10.
A force of 100 N is applied to an object of area 2 m².Calculate the
pressure.
11.
Why the depression is much more when a man stands on the cushion than when he
lies down on it?
plz ans these four que
plz ​ plz ans these que

Answer 1

Answer:

: Air pressure is what you measure with a tire gauge. Atmospheric pressure is what you measure with a mercury barometer. ... Pressure is the amount of force per unit area that a gas exerts on a surface

Contact force is a general term for any force that two objects exert on each other because they're in contact. The component of the contact force that is normal to the contact surface is called normal force and the parallel component is called friction. When you shoot a ball, you're exerting force on it.

$pressure = \frac{force}{area}$

$= \frac{100}{2}$

$= 50pressure$

$this \: is \: the \: answer$

When a person stands on a cushion, the entire weight of his body gets focused on a smaller area, thereby producing a larger pressure. ... Thus, the depression in the cushion is more when a person stands than when he lies.

Hope this helps you.

Please mark it BRAINLIEST.

Answer 2

Answer:

hii in which class do you study dear..