Using the pressure law (P1 x V1)/ T1 = (P2 x V2)/ T2 where P1= the initial pressure V1= initial volume T1= initial temperature and P2= the final pressure V2= the final volume T2 = the final temperature and temperature is always in kelvin
Answer:
W = 12.568rads
V = 1.8852m/s
Explanation:
Data:
r = 15cm = 0.15m
t = 10s
Revolutions = 20
Frequency (F) = number revolutions/ time take complete it
F = 20 / 10 = 2Hz
Angular velocity (w) = 2 * 3.142 * F
Note: 3.142 = value of pi
W = 2*3.142*2 = 12.568 rads
Linear velocity (v) = w*r
V = 12.568*0.15 = 1.8852m/s
Physical property
Dissolve
Explanation:
A physical property of salt is that it will dissolve in water.
A salt is an ionic compound consisting of positive ions such as metallic, ammonium and complex ions and negative ions such as acid radicals and complex ions.
The physical property of substance tells us everything about a substance when no change is occurring to its constituents.
- Solubility is an example of physical property of matter.
- Generally, like substances will dissolve one another.
- Salt is an ionic compound, and like water, it is polar.
- Water molecules will aggregate round each salt particle and hydrate them into solution.
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Physical property brainly.com/question/10972073
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A) it has a net force because we know that it’s going down in a direction, so there is no force being cancelled out.
