The speed of an object in a specific direction is expressed in velocity. you do not know an object's velocity until you know speed and distance.
The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity.
The speed of an object in a specific direction is expressed in velocity. Unlike speed, velocity is concerned with the movement's direction.
The difference between velocity and speed is how quickly and in which direction an object moves. Velocity in physics refers to speed in a specific direction. We identify a car's speed when we say it goes at 60 km/h.
Thus, you do not know an object's velocity until you know speed and distance.
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It's C. noble gas enjoy.
Answer:
noble gas
Explanation:
I took the test hope you got it right :)
Why can physical changes separate the components of a mixture but not the components of a compound?
Several types of mixtures can be separated by physical means. Heterogeneous mixtures imply the different parts are not equally distributed, much like how on a pizza the toppings are not located in the crust. A homogeneous mixture is one where the components are equally mixed, such as orange juice or lemonade (excluding the pulp).
A common heterogeneous example is to separate oil from water by placing the mixture into a separation funnel and draining one level of liquid out. You then have the two separate components. Basically, if you can see the different layers in a mixture, you can physically remove them by either picking out the solids (either with your hands or running the mixture through filter paper) or for liquids using the funnel.