0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the force between two surfaces in relative motion called?
Named as frictional force in case of solids and named as viscous force in case of fluids, ie liquids and gases.
How does the roughness of surfaces that are touching affect the friction betwen the surfaces?
The rougher the surfaces the greater the friction.
What is the difference between the way black and white surfaces affect light?
White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.White surfaces reflect light and heat. Black surfaces do not reflect light and they absorb heat.
What type of surfaces might cause a toy car to roll faster or slower?
Faster: Surfaces with less friction (smooth) ;slanted surfaces Slower: Surfaces with more friction (sticky surfaces, rough surfaces), uphill surfaces Of course a slanted surface with too much friction will also make the car slower.
Does friction depend on the types of surfaces involved and how hard the surfaces push together?
Friction does depend on the types of surfaces involved and how hard the surfaces push together. Friction would be very minimal if the surfaces were smooth and not pushing together too hard.
Why solids have any number of free surfaces while liquids have only one upper free surfaces?
It is a characteristic of liquids and gases to assume the shapes of their containers while solids maintain their own shapes.
How does alveoli help two gases diffuse quickly into and out of the blood?
They have capillaries close to their surfaces.
what are the characteristics of a Jovian planet?
They have no solid surfaces. They are much larger than the terrestrial planets. They orbit far from the sun. They are composed of gases.
Why do gas exchange surfaces need to be moist?
The gases are to dissolve and diffuse through.
Do gases have free surface?
Gases cannot form a free surface on their own. However, gases do have a free surface at the boundary between gas and liquid, such as the free surface of the sea, or the boundary between the liquid of a soft drink and each carbon dioxide bubble rising in it.
What two structures do frogs use for gas exchange?
Frogs uses respiratory surfaces which totals to three to exchange gases on its surroundings. The three respiratory surfaces are the skin, its lungs, and the lining of their mouth.
Hot gases containing charged and uncharged atoms and free electrons is?
Hot gases containing charged and uncharged atoms and free electrons is plasma.
Could you land on the outer planets?
No. The outer planets do not have solid surfaces. Those planets are made of gases held together by gravity.
What are the two requirement's for glue to work?
It must be at a suitable temperature. The surfaces to be glued must be clean and grease free.
Does lava have gas?
Yes. Gases may be trapped in lava. These may form bubbles on the surfaces of a flow, giving it a vesicular texture when it cools.
What has the author Mohammad Bahgat Elmoselhi written?
Mohammad Bahgat Elmoselhi has written: 'Molecular properties controlling the adsorption of gases in solid surfaces'
Does gas expand or contracts?
In a free space gases expand.
