What are physical properties?

Physics

1 answer:

Alex787 [66]3 years ago

3 0

Answer:

they are things that can't be turned back the way they were before, like when you mix an egg, you can't get the egg to unmix itself.

Explanation:

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What state of matter can easily be compressed (squeezed into a much smaller space)? *

avanturin [10]

Answer:

gases.

Explanation:

gases have the highest volume. if you compress (increase pressure) a gas, the volume decreases and it will take up less space as a liquid, and if you compress more, the liquid will become a solid.

additionally info: this is generally true, but as you get into more difficult subjects, this rule does not hold. for example, some substances cannot obtain a certain phase of matter when they are a certain temperature and or pressure. but that could be way more out of this questions league.

6 0

3 years ago

A 300-kg bear grasping a vertical tree slides down at constant velocity. the friction force between the tree and the bear is:___

Nady [450]

3000 N of friction exists between the bear and the tree.

The bear goes down at a constant speed, thus there is no acceleration. The forces add up to zero. As a result, upward friction and downward weight result in zero

i.e.,

F-mg=0

F = mg

F = (300 kg)/10 $m/s^{2}$ (gravitational acceleration)

3000 N frictional force equals F.

How does friction force work?

Friction is the force that prevents two solid objects from rolling or sliding over one another. Even though frictional forces, such as the traction required to walk without slipping, may be advantageous, they can also be a significant hindrance to motion.

Between solid surfaces, there are three basic types of friction: