Sorry im from the UK, ill do my math in metric :)
5) work done = force * distance moved in direction of force
170J = 140N* ?d
170J/140N = 1.21m
F=Ma
140N/9.81ms^-2=
14.27Kg or 31.46Ib
you could do the fast alternative simplified route to this question
as 140/4.45 = 31.46Ib
The pitch is important because of how low or high or how loud would it be. the frequency of the sound for human ear.
Yeah we always see the same side of the moon because it orbits around earth with that side constantly facing earth, if that's not your question than just comment and i'll try to answer...
Answer = C
It blows towards the poles from the sub-tropical high pressure areas
Answer:
24
Explanation:
If it took 3 hours to clean 6 houses than you can figure that is 2 houses per hours. so if there are 12 hours and 2 houses an hour, you multiply 12x2 and get 24. Another way to do it is to use proportions (aka two fractions that equal eachother):
3 hours 12 hours
---------------- = ---------------
6 houses number of houses
To calculate this, we can think about how we go from 3 to 12. Well, 3x4 is 12, so we got to 12 by doing multiplying by 4. So we can multiply 6 by 4 and you get 24.
<u><em>Hope it helps! have a great day :)</em></u>
