The valve in a tire valve stem is a Schrader valve, it is a one way valve that is spring loaded shut. If air is leaking out, it is usually dirty and the dirty is holding it open preventing it from sealing/ or never reinstalled properly during last service. There is a tool to remove the valve, for quick deflating/servicing. Use soapy water or cleaner like windex/fantastic to check if it's leaking. If it is it will foam/bubble up.
Certain fluids, especially liquids, do exert internal friction. This property of the fluid is called viscosity. Rheology is known as the study of viscosity.
The fluids in your body exert pressure and prevent the atmospheric pressure from closing in. Fluids exert pressure on a container the particles collide with each other and the sides of the container.
As the molecules in the gas move, they collide with the container they are within. These collisions is what we call pressure.
Paracrines
Magnets are materials that can exert a force of attraction or repulsion on certain objects.Magnets can be strong or weak, depending on their internal arrangements.
To prevent damage in your devices and in the cable wires.
is the scientific community's best explanation for certain observable facts
They are a job in the medical field that takes scans on the human body to prevent diseases.And the certification is a certificate that proves that you're approve to exert this job.
The past tense of "exert" is "exerted."
opposite and equal force against you.
You exert force when you pull on anything.
You exert force when you pull on anything.