The correct answer is c. The process of deposition causes rock and soil to be slowly gained. Deposition is a geological process in which soil and rocks are added to a landform.
It’s 5 kg because the formula is m=F/a, which is 20/4, and you’ll end up with 5 kg.
Answer:
a) 0.441 m
b) 0 m
c) 0.441 m/s
Explanation:
Simple harmonic motion equations
ω = √(k/m)
- k - spring constant
- m - mass
ω = √(210/1.8)
= 10.8 rad/s
x = A*sin(ωt)
- x - displacement
- A - amplitude
- t - time
x = A*sin(ωt)
0.139 = A * sin(10.8 * 1.7)
A = 0.441 m
when t= 0
x = 0.441*sin(0)
x0 = 0 m
velocity =Aω*cos(ωt)
= 0.441 * cos(0)
= 0.441 m/s
1ª
a)



magnitude: 3.7 N
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b)



magnitude: 17.1 N
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or

c)



magnitude: 1.4 N
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Watch the picture:
We have: 45º (isosceles) below horizontal (to 3N and 1N).
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4ª
a)





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b)
<span>In opposite
directions</span>


