<span>Silt is like a dust in terms of size. It is solid,
water like rivers transport, and deposits it. It is mostly made up of minerals
and rock particles. It is form due to erosion of rocks. Therefore, the fine soil particles deposited by rivers is called Silt.</span>
Answer:
the mass of the raft is 68.4 kg
Explanation:
Since Mass is defined as Volume times Density, start by calculating the volume of the raft:
Volume = length x width x high = 1.5 m x 1.0 m x 0.12 m = 0.18 m^3
and now multiply it times the given density in order to find its mass:
Mass = Volume x Density = 0.18 m^3 x 380 kg/m^3 = 68.4 kg.
Notice that the m^3 units cancel out (they are in numerator and in denominator) leaving just the kg (a unit of mass) in the answer.
Therefore, the mass of the raft is 68.4 kg
Answers:
a) 
b) 
c) 
Explanation:
A unit vector is a vector whose magnitude (length) is equal to 1. This kind of vector is identified as 
and the way to calculate is as follows:
Where:
is the vector
is the magnitude of the vector
Having this information clarified, let's begin with the answers:
a) Force Vector
Magnitude of 
:
<u />
<u>Unit vector:</u>
b) Displacement Vector
Magnitude of 
:
<u />
<u>Unit vector:</u>
c) Velocity Vector
Magnitude of 
:
<u />
<u>Unit vector:</u>
Answer: 3kg: 14.7 6kg: 29.4 9kg: 44.1
Explanation: just did it on Edge
