If you mean work out as in using calculations, I don't know how to help you. But there is a way to find out, using Fleming's left hand rule. I can't define it properly, and I don't want to copy-paste from another site, so I strongly recommend that you look it up. Try google, or more specific, BBC GCSE bitesize.
Hope this helps!
The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.
Answer:
a) Vb = 4.65m/s at 25.46° due south of east
b) t = 119s
c) d = 238m
d) 28.43° due north of east.
e) Vb = 3.69m/s due east
f) t = 135.5s
Explanation:
Velocity relative to the earth is:
![V_b = V_{b/w} + V_w = [4.2,0]+[0,-2]=[4.2,-2]m/s](https://tex.z-dn.net/?f=V_b%20%3D%20V_%7Bb%2Fw%7D%20%2B%20V_w%20%3D%20%5B4.2%2C0%5D%2B%5B0%2C-2%5D%3D%5B4.2%2C-2%5Dm%2Fs)
Vb = 4.65m/s < -25.46°
Since the distance to travel is 500m:
The distance on the y-axis is given by:
If the final position is directly east from the starting position:
![V_b= [V_{b-x}, 0] = [4.2*cos\beta ,4.2*sin\beta ]+[0,-2]](https://tex.z-dn.net/?f=V_b%3D%20%5BV_%7Bb-x%7D%2C%200%5D%20%3D%20%5B4.2%2Acos%5Cbeta%20%2C4.2%2Asin%5Cbeta%20%5D%2B%5B0%2C-2%5D)
From the y-components:
Solving for β:
β=28.43°
With this angle, the velocity would be:
Vb = 4.2*cos(28.43°) = 3.69m/s
And the time it would take it to cross:
t = 500/3.69 = 135.5s
In (A. Dalton's) atomic model, negative electrons orbit the positively charged nucleus.
Velocity is the rate of change of displacement and both of them are vectors. Acceleration is the rate of change of velocity and both of them are vectors. So the answer is d.
