3 years ago

1The density of an of an object with a volume of 60.0 and mass of 400.0g is______

Physics

1 answer:

Kobotan [32]3 years ago

4 0

D is the answer
To get the density you divide mass by volume
So the equation is 400/60=d

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If Frequency F, velocity v, and density D are considered fundamental units, the dimensional formula for momentum will be :

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Let's see

Momentum be P

$\\ \rm\Rrightarrow P=[Frequency]^a[velocity]^b[Density]^c$

$\\ \rm\Rrightarrow [P]=[F]^a[v]^b[D]^c$

$\\ \rm\Rrightarrow [M^1L^1T^{-1}]=[T^{-1}]^a[L^1T^{-1}]^b[M^1L^{-3}]^c$

$\\ \rm\Rrightarrow MLT^{-1}=T^{-a}L^bT^{-b}M^cL^{-3c}$

$\\ \rm\Rrightarrow MLT^{-1}=T^{-a-b}L^{b-3c}M^c$

On comaparing

b-3c=1
b-3=1
b=1+3
b=4

and

-a-b=-1
-a-4=-1
-a=-1+4=3
a=-3

So the unit is

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Hope i helped
Have a good day :)

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