Answer: • using beaker tongs to handle the hot beaker.
• checking the beaker for chips prior to heating on the hot plate.
• Turning off the hot plate after use
Explanation:
The options that will ensure laboratory safety during the experiment will be:
• using beaker tongs to handle the hot beaker.
• checking the beaker for chips prior to heating on the hot plate.
• Turning off the hot plate after use.
We should note that the beaker tongs are simply used in the holding of the beakers that have hot liquids in them. Also, it s vital for the hot plate to be turned off after its use so as to prevent accident.
Answer:
Initial Velocity is 4 m/s
Explanation:
What is acceleration?
It is the change in velocity with respect to time, or the rate of change of velocity.
We can write this as:
![a=\frac{\Delta v}{t}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B%5CDelta%20v%7D%7Bt%7D)
Where
a is the acceleration
v is velocity
t is time
is "change in"
For this problem , we are given
a = 1.2
t = 10
Putting into formula, we get:
![a=\frac{\Delta v}{t}\\1.2=\frac{\Delta v}{10}\\\Delta v = 1.2*10\\\Delta v = 12](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B%5CDelta%20v%7D%7Bt%7D%5C%5C1.2%3D%5Cfrac%7B%5CDelta%20v%7D%7B10%7D%5C%5C%5CDelta%20v%20%3D%201.2%2A10%5C%5C%5CDelta%20v%20%3D%2012)
So, the change in velocity is 12 m/s
The change in velocity can also be written as:
![\Delta v = Final \ Velocity - Initial \ Velocity](https://tex.z-dn.net/?f=%5CDelta%20v%20%3D%20Final%20%20%5C%20Velocity%20-%20Initial%20%5C%20Velocity)
It is given Final Velocity = 16, so we put it into formula and find Initial Velocity. Shown Below:
![\Delta v = Final \ Velocity - Initial \ Velocity\\12=16-Initial \ Velocity\\Initial \ Velocity = 16 - 12 = 4](https://tex.z-dn.net/?f=%5CDelta%20v%20%3D%20Final%20%20%5C%20Velocity%20-%20Initial%20%5C%20Velocity%5C%5C12%3D16-Initial%20%5C%20Velocity%5C%5CInitial%20%5C%20Velocity%20%3D%2016%20-%2012%20%3D%204)
hence,
Initial Velocity is 4 m/s
The price of coast to coast membership in united states could lie anywhere between $2,000 to $ 5,000
Unless you're a frequent user of this type of event, i think it would be economically more efficient if you pay the resort on one-day price
Earthworm have bones Some children confuse earthworms, which are invertebrates and have no bones, with snakes which are vertebrates and do have a bony skeleton and many ribs.
Other than for the chemical symbol, the electron dot diagram for silicon would be the same as it was for carbon.
The reason for this is because electron dot diagrams are used to represent the electrons in the outermost, or valence, shell of an atom. In a group of the periodic table, all of the elements have the same number of valence shell electrons. This means that all elements belonging to the same group have the same electron dot diagram, except for the symbol of the element that is within the diagram.