Answer:
10.1 ms^-2
Explanation:
From;
v = u + at
v = final velocity
u = initial velocity
a= acceleration
t = time taken
To convert the velocity from Km/hr to m/s we us;
x * 1000/3600
Where x is the velocity in Km/hr
So;
799 * 1000/3600 = 221.9 m/s
11325 * 1000/3600 = 3145.8 m/s
4.8 minutes = 4.8 * 60 = 288 s
Applying the formula;
a= v - u/t
a = 3145.8 - 221.9/288
a = 10.1 ms^-2
Answer:
It is a pure substance. Magnesium is an element.
Answer:
Component 1, since it has the greatest mass.
Explanation:
Hello,
In this case, considering that the by-mass percent of a substance is computed:

In such a way, given the form of the equation one could infer that the higher the mass of the i component, the higher its by-mass percent, it means that the component with the greatest mass will have the highest by-mass percent for the mixture. In such a way, since the component 1 was found to have a mass of 1.12 g, it will have the highest by-mass percent.
Best regards.
Answer:
C. <u>Balanced forces</u>
Explanation:
<u>W</u><u>h</u><u>a</u><u>t</u><u> </u><u>d</u><u>o</u><u> </u><u>t</u><u>h</u><u>e</u><u> </u><u>a</u><u>r</u><u>r</u><u>o</u><u>w</u><u>s</u><u> </u><u>i</u><u>n</u><u> </u><u>t</u><u>h</u><u>e</u><u> </u><u>p</u><u>h</u><u>o</u><u>t</u><u>o</u><u>g</u><u>r</u><u>a</u><u>p</u><u>h</u><u> </u><u>r</u><u>e</u><u>p</u><u>r</u><u>e</u><u>s</u><u>e</u><u>n</u><u>t</u><u> </u><u>Balanced forces</u>
Answer: The only force that acts between particles of helium gas is Vanderwaal forces.
Explanation:
When molecules are uncharged in nature but still combined together due to the dipole moment of elements then this force holding the molecules together is known as Vanderwaal forces.
This force is weak in nature.
For example, particles of helium gas has Vanderwaal force between its atoms.
Thus, we can conclude that the only force that acts between particles of helium gas is Vanderwaal forces.