Speed of the TRAX is given as 16 m/s so let say it is given as

now our speed towards the front end is given by 5 m/s so this is the relative speed of us with respect to TRAX
let say this speed is given as

now we need to find the speed with respect to someone standing outside the TRAX
so here we need to find the net speed in ground frame and hence we can use the formula of relative speed




so someone outside the TRAX will see our speed as 21 m/s
Answer:
300 nm
Explanation:
R = Gas constant = 8.314 J/molK
r = Atomic radii = 
d = Atomic diameter = 
At STP
T = Temperature = 273.15 K
P = Pressure = 100 kPa
= Avogadro's number = 
The mean free path is given by

The answer that best represents the mean free path for gas molecules is 300 nm
<u>Answer:</u>
Strontium atom loses 2 electrons to become an ion.
<u>Explanation:</u>
Strontium (an Alkaline Earth metal) is the 38th element found in the Group 2 of the periodic table.
A Strontium atom has same number of electrons as its protons. It has a +2 electronegativity because it belongs to group 2 of the periodic table so it has the tendency to lose 2 electrons to form a positive ion.
Therefor, Strontium atom loses 2 electrons to become an ion with 2 electrons lesser than its atom.
Answer:
45° to min.
1° ----> 60 min
45° ----> ?.
45 * 60
2700 min
<h3><u>2</u><u>7</u><u>0</u><u>0</u><u> </u><u>min</u></h3>
Work = Force * distance.
d = 8 m
W = 2400 J
F = ???
2400 = 8 * F
F = 2400/8
F = 300 N