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kvv77 [185]
3 years ago
9

Which line represents a stationary object?

Physics
2 answers:
Arada [10]3 years ago
6 0
I believe the answer is B. Stationary usually means that the object is not moving. Line B is going straight which would indicate that the object is not moving. Therefore I am pretty sure the answer is B. Hope this helps! <3
sineoko [7]3 years ago
3 0

Answer:

I think its B but I may be wrong

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A block of density pb = 9.50 times 10^2 kg/m^3 floats face down in a fluid of density pt = 1.30 times 10^3 kg/m^3. The block has
Nookie1986 [14]

Answer:

The depth and acceleration are 0.1919291 ft and 3.61 m/s².

Explanation:

Given that,

Density of block \rho_{b} =9.50\times10^2\ kg/m^3

Density of fluid \rho_{t} =1.30\times10^3\ kg/m^3

We need to calculate the depth

Using balance equation

mg=\rho g V....(I)

We know that,

The density is

\rho=\dfrac{m}{V}

m=\rh0\times V

Put the value of m in equation (I)

\rho_{b}\times V\times g=\rho_{t}\times g\times V

\rho_{b}\times A\times H\times g=\rho_{t}\times g\times A\times h

h=\dfrac{\rho_{b}H}{\rho_{t}}

Put the value into the formula

h=\dfrac{9.50\times10^2\times8.00\times10^{-2}}{1.30\times10^3}

h= 5.85\ cm

h=0.1919291\ ft

We need to calculate the acceleration

Using formula of net force

F_{net}=\rho_{t}\times g\times V- \rho_{b}\times g\times V

ma=\rho_{t}\times g\times V- \rho_{b}\times g\times V

\rho_{b}\times V\times a=\rho_{t}\times g\times V- \rho_{b}\times g\times V

a=(\dfrac{\rho_{t}}{\rho_{b}}-1)g....(II)

Put the value in the equation (II)

a=(\dfrac{1.30\times10^3}{9.50\times10^2}-1)\times9.8

a=3.61\ m/s^2

Hence, The depth and acceleration are 0.1919291 ft and 3.61 m/s².

4 0
3 years ago
A sequence of star colors from hottest to coolest is
RSB [31]
O Bluish ("blue") 
B Bluish-white ("blue-white") 
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F  White ("yellow-white") 
G  Light yellow ("yellow") 
K  Light orange ("orange") 
M  Reddish orange ("red")
6 0
3 years ago
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It wouldn't indicate the same source if the paint was from a different place. If the paint was the same brand and color it would be but if not then no
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We know that the motion of the Moon around the Earth is due
nadezda [96]

Answer:

YES

Explanation:

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Explain why theories may be changed or replaced overnight time.
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