Answer:
= 3768 m/ms
Explanation:
For this exercise we will use the relationships of the moment
I = ∫ F dt = Δp
The expression for strength is
F = at - bt3
Let's replace and calculate the momentum
I = ∫ (at - bt3) dt
I = a t2 / 2 - b t4 / 4
We evaluate between the initial time of zero and the final time of 2.74 ms
I = ½ a (2.74)² - ¼ b (2.74)⁴
I = ½ 1500 7.51 - ¼ 20 56.36
I = 5632.5-281.8
I = 5350.7 N ms
Now we use the momentum relationship with the moment
I = Δp
I = m - m v₀
I = m - 0
= I / m
= 5350.7 / 1.42
= 3768 m / ms
= 3768 m / ms (1000 ms / 1 s) = 3.768 106 m / s
Length
The metric unit used to measure length in International System (SI) is meter and it is represented by letter m.
Length can be measured by a metric scale.
Mass
The metric unit used to measure Mass in International System (SI) is Kilograms and it is represented by letter Kg.
Mass can be measured by an instrument called Balance.
Volume
The metric unit used to measure Volume in International System (SI) is Liter and it is represented by letter l.
Volume can be measured by a container called graduated cylinder.
Temperature
The metric unit used to measure Temperature in International System (SI) is Kelvin and it is represented by letter K.
Temprature is measured by most common divice called thermometer.
Acceleration=(change in speed)/(time for the change). 43/0.28 = 153.6 m/s^2.
Pressure = Force / Area
Put your data in front of yourself.
Force = 600 Newtons
Area = 300 cm^2
Firstly you need to convert the area into m^2 and you do this by diving 300 with 10000.
Now you use the formula:-
Pressure = 600/ 0.03
Which comes out to be 20,000 Pa.
Hope this helps!
An atom with two valence electrons in the periodic table belongs to the alkaline earth metals or 2nd group. The element with atomic number 17 is chlorine with 7 valence electrons. Ionic compounds are formed between the atoms of elements with high electronegativity difference. More the difference, more they are likely to form ionic bond.
Thus in this case, the most likely formed ionic compound will be with alkaline earth metal with high electropositivity. The highest electropositive element in group 2 is barium thus, ionic compound formed will be
In , barium will donate its two electrons, one to each chlorine atom. The resultant compound will be ionic in which all the atom have complete octets.