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What are the particulars of the law of conservation of momentum?
In a closed system with no external forces acting upon it, the momentum of the system is constant.
Why do the sides of a flexible container collapse when the air is removed?
A pressure difference is created, low pressure on the inside and higher pressure on the outside (the atmospheric pressure). The atmospheric pressure crushes the plastic container, acting on the outer plastic walls.
What is the unit of pressure?
Since pressure is defined as force acting perpendicularly on a surface, P := d(F n)/ds (where n is the versor perpendicular to the element of surface ds), its unit is N/m2, also known as pascal: 1 Pa = 1 N / 1 m2N/m^2 (N:Newton (unit of Force) that named Pascal is unit of pressure.1Pa means that 1N load(force) as normally affect on 1 m^2 area.other unit is bar , mmHg. atmosphere,......
What is net external force?
The Net external forces is the result force of two objects acting upon it. So if like two forces act on a book. One force exerts downward on the book and the other force pushes the table back on the book with the same amount of push and pull. Since both forces are pushing on each other with the same amount of energy the resultant force or net external force will be in equilibrium or zero.
When are the forces acting on the object?
Depending on the scenario the forces act on the object when there is actually a force being acted on it? Gravity is always acting on objects (unless space) Friction acts on object as long as object is moving on a surface with friction There are a bunch of other forces but these are just examples
What two factors determine the point at which a liquid will boil?
Heat or energy applied and atmosphereic pressuresPressure and temperature (apex)
How can the pressure acting on the surface be increased by the force acting on the surface?
Simply pressure is the force per unit area. So Pressure is directly proportional to the force applied. Hence by increasing the force we can increase the pressure.
What To calculate the pressure exerted on a surface what quantity is divided by the surface area?
To calculate the pressure exerted on a surface, the force acting on the surface is divided by the surface area. Mathematically, pressure = force / area.
Why do you use the term stress instead of pressure when you discuss rock deformation?
Pressure describes a load acting over an external surface. Stress describes the loading within the material. This is often caused by the material deforming so that one part presses against another. So if the loading has an external source acting over an external area it is pressure, if the loading is internal and distributed over a cross section of the material it is stress.
Relation between atmospheric pressure and boiling point?
As atmospheric pressure increase so does the boiling pont, when atmos. pressure decreases so does boiling point. A liquid boils when its vapor pressure equals atmospheric pressure.
On pneumatic thermostat what is the difference between direct acting and reverse acting?
A Direct Acting (DA) pneumatic thermostat increases branch line pressure as temperature increases. A Reverse Acting (RA) pneumatic thermostat decreases branch line pressure as temperature increases.
What is the force acting on a unit area of a surface?
The force acting on a unit area of a surface is known as pressure. Pressure is calculated by dividing the force perpendicular to the surface by the area over which the force is distributed. It is typically measured in units such as Pascals (Pa) or pounds per square inch (psi).
How single acting cylinder work?
A single-acting cylinder operates by using fluid power to extend the piston, which is then retracted by an external force such as a spring or gravity. When fluid pressure is applied, it pushes against the piston rod to extend it, performing work in one direction. The return stroke is accomplished by the external force, as there is no fluid pressure acting in the opposite direction.
When an object changes in shape and form it is called a?
When an object changes in shape and form, it is called deformation. This can happen due to various factors such as stress, temperature, pressure, or other external forces acting upon the object.
What are the 3 external forces in the Earth?
The 3 external forces acting on Earth are gravity from the Sun and Moon, solar radiation pressure, and tidal forces from the Moon and Sun.
Why does a can crushes when air inside it is pumped out?
When the air is pumped out of the can, the pressure inside the can becomes significantly lower than the external atmospheric pressure. The higher external pressure then causes the can to collapse. This is due to the unequal forces acting on the can from the outside and inside, leading to the can's deformation.
What are definition of these terms stress normal stress shear stress and pressure?
Normal stress is a force acting perpendicular to a surface, shear stress is a force acting parallel to a surface causing deformation, and pressure is a measure of force applied over a certain area.
