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What is an example of a hand contact surface?
An example of a hand contact surface is a door handle.
What heat transfer that is warming hand over a radiator?
Conduction is the heat transfer process that warms your hand when placed over a radiator. The radiator transfers heat to your hand through direct contact, as the molecules of your hand gain kinetic energy from the warm radiator surface.
Is surface tension a contact or non-contact force?
Surface tension is a result of cohesive forces between liquid molecules at the surface, so it is a non-contact force that acts at the interface of the liquid with its surroundings.
How is pressure on your hand balanced?
The pressure on your hand is balanced by the opposing forces acting on it. When you press your hand against a surface, the surface exerts an equal and opposite force back on your hand, balancing the pressure. This balance of forces prevents your hand from moving further into the surface or being pushed away.
What kind of surface would increase friction?
Rough surfaces with irregularities, such as sandpaper or concrete, will increase friction because they create more contact points between two objects. The rougher the surface, the higher the frictional force due to the interlocking of surface asperities. Smooth surfaces, on the other hand, have less friction because there are fewer contact points and less resistance to sliding.
What is an example of a hand contact surface?
An example of a hand contact surface is a door handle.
Do you have to wash hands after using hand sanitizer?
Not If you don't get your hand soiled with something dirty Normal contact with a patient or a dry surface with possible bacteria is not a problem
Explain what is meant by a food contact surface?
Surface that touch food are called "food contact surfaces".
Food contact surface definition?
A food contact surface is any surface of equipment, utensil, containers and wrappings that come into direct contact with food.
What is the effect on coefficient of static friction when side length of a cube of 5 cm is doubled to original?
The surface areas in contact do not affect the coefficient.The surface areas in contact do not affect the coefficient.The surface areas in contact do not affect the coefficient.The surface areas in contact do not affect the coefficient.
What heat transfer that is warming hand over a radiator?
Conduction is the heat transfer process that warms your hand when placed over a radiator. The radiator transfers heat to your hand through direct contact, as the molecules of your hand gain kinetic energy from the warm radiator surface.
When you touch a cold surface does cold travel from the surface to your hand or does energy travel from your hand to the cold surface?
Energy travels from your hand to the surface, because even the slightest touch transfers energy. Cold doesn't transfer from the surface to your hand, your nerves just tell your brain that the surface is cold.
Does cold travel from the surface to your hand or does energy travel from your hand to the cold surface?
Energy travels from your hand to the cold surface. Cold is merely the relative absence of heat.
Is surface tension a contact or non-contact force?
Surface tension is a result of cohesive forces between liquid molecules at the surface, so it is a non-contact force that acts at the interface of the liquid with its surroundings.
How is pressure on your hand balanced?
The pressure on your hand is balanced by the opposing forces acting on it. When you press your hand against a surface, the surface exerts an equal and opposite force back on your hand, balancing the pressure. This balance of forces prevents your hand from moving further into the surface or being pushed away.
What kind of surface would increase friction?
Rough surfaces with irregularities, such as sandpaper or concrete, will increase friction because they create more contact points between two objects. The rougher the surface, the higher the frictional force due to the interlocking of surface asperities. Smooth surfaces, on the other hand, have less friction because there are fewer contact points and less resistance to sliding.
Is pressure a contact force?
Yes, pressure is a contact force that occurs when an object comes into contact with a surface. It is the force applied perpendicular to the surface per unit area.
