Answer:1.it changes its physical state 2.lemonade 3.A mixture of 3 or more substances
Explanation:
Lemonade is a mixture.A solution is mixture of two or more substances.if changes from a solid into a different form of state
Explanation:
<h2>expation!!!!!!!!!!!!!!!!!!!!!!!!!! $$!!!!!!!!!!!!!!! explantion bbbnb</h2>
Answer:
Patm or the presion at the top is equal to 110977.28[Pa]
Explanation:
First we must define the absolute pressure value, which is equal to the sum of the atmospheric pressure plus the manometrial pressure.
![P_{abs} = P_{atm}+P_{man}\\where:\\P_{abs}=122000[Pa]](https://tex.z-dn.net/?f=P_%7Babs%7D%20%3D%20P_%7Batm%7D%2BP_%7Bman%7D%5C%5Cwhere%3A%5C%5CP_%7Babs%7D%3D122000%5BPa%5D)
Now we can find the manometric pressure.
![P_{man} = density*g*h\\where:\\density = 921[kg/m^3]\\g = gravity = 9.81[m/s^2]\\h = depth = 1.22[m]](https://tex.z-dn.net/?f=P_%7Bman%7D%20%20%3D%20density%2Ag%2Ah%5C%5Cwhere%3A%5C%5Cdensity%20%3D%20921%5Bkg%2Fm%5E3%5D%5C%5Cg%20%3D%20gravity%20%3D%209.81%5Bm%2Fs%5E2%5D%5C%5Ch%20%3D%20depth%20%3D%201.22%5Bm%5D)
![P_{man} = 921*9.81*1.22\\ P_{man}= 11022.71[Pa]](https://tex.z-dn.net/?f=P_%7Bman%7D%20%3D%20921%2A9.81%2A1.22%5C%5C%20P_%7Bman%7D%3D%2011022.71%5BPa%5D)
Therefore:
![P_{atm} = P_{abs} - P_{man} \\P_{atm} = 122000 - 11022.71\\P_{atm}= 110977.28[Pa]](https://tex.z-dn.net/?f=P_%7Batm%7D%20%3D%20%20P_%7Babs%7D%20-%20P_%7Bman%7D%20%5C%5CP_%7Batm%7D%20%3D%20122000%20-%2011022.71%5C%5CP_%7Batm%7D%3D%20110977.28%5BPa%5D)
' +4 m/s² ' means that the pigeon's speed is 4 m/s greater every second.
Starting from zero speed, after 10 seconds, its speed is
(10 x 4m/s) = 40 m/s.
We can't say anything about its velocity, because we have
no information regarding the direction of its flight.
Answer: Option C: The number of positive and negative charges can be same.
A substance is said to be polarized when there is non-uniform distribution of electric charge. When there gain or loss of electrons, ions are formed. It is not necessary that polarized object is metal. For example, Water is polarized. The oxygen atoms have partial negative charge and hydrogen atoms have partial positive charge.
