Newton's 2nd law of motion: Force = (mass) x (acceleration)
<em>Force on the ball = (mass of the ball) x (9.5 m/s²) to the right</em>
Answer:
qualitative observations.
Explanation:
In a qualitative observation, the data that is dealt with is one that has to do with the sense of touch, sight, smell, taste and also hearing. This type of observation does not have anything to do with measurements that involves numbers. Examples of qualitative observation includes shapes, color, gender, citizenship.
Answer:
Work done by battery will be equal to 10.238 J
Explanation:
We have given ideal an ideal battery with ideal voltage V = 24 volt
Constant current
Resistance will be equal to
Time is given t = 3 minutes = 3×60 = 180 sec
We have to find work done by battery
Work done is equal to
So work done by battery will be equal to 10.238 J
I am sorry but I don't know what the answer can be
Answer:
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- <em><u>B) Is the solid large enough to be caught by the pores of a filter? </u></em>
Explanation:
An <em>insoluble solid</em> and a <em>liquid</em> form an heterogeneous mixture, meaning the liquid and the solid could be <em>separated</em> by physical media.
If the size of the solid particles are large enough it could be separated from the liquid by filtration.
Since, the task is to separate the mixture into its pure components, the best and first step is to determine whether the solid particles have the size that permit to retain them in the available fliter, which is described by<em> </em>the option <em>B): is the solid large enough to be caught by the pores of a filter? </em>
As for the other options:
<em>A) Is the solid/liquid mixture toxic in its combined form?</em>
- a mixture is not more toxic than its pure components, because they are a physical combination and not a chemical one.
<em>C) Is the melting temperature of the solid lower than that of the liquid?</em>
- you do not want to melt the solid, because that would make the separation more difficult.
<em>D) Can the solid be crushed into smaller particles to allow for distillation? </em>
- crushing the solid will not make it soluble and will not change the boiling point of the solution, thus this is not a step to separate the mixture into its components.