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3 years ago

The force shown in the figure(Figure 1) moves an object from x = 0 to x = 0.75 m.

Physics

1 answer:

Norma-Jean [14]3 years ago

3 0

Answer:

Explanation:

Work is force times distance in the direction of that force.

W = 0.6(0.25 - 0.00) + 0.4(0.50 - 0.25) + 0.8(0.75 - 0.50)

W = 0.45 J

W = 0.6(0.25 - 0.20) + 0.4(0.50 - 0.25) + 0.8(0.55 - 0.50)

W = 0.17 J

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I WILL MARK YOU THE BRAINLIEST

mr Goodwill [35]

Explanation:

700N right

to get the net force

you gotta let one direction be the negative ( the smaller force)

so the total force towards the left is 100N ( 60 + 40= 100)

which is smaller than the right force which is 800 N so you let 100 N be negative

so without even calculating , you can know that it will be moving towards the right because right force > left force

your add both forces ( remember 100 N is negative)

so 800N + ( - 100N)

= 700N

towards the right

hope this helps

this is just one method that helped me understand

please mark it brainliest

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Answer:

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Explanation:

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nataly862011 [7]

Answer:

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Two rigid tanks of equal size and shape are filled with different gases. The tank on the left contains oxygen, and the tank on t

fredd [130]

Answer:

The number of oxygen molecules in the left container greater than the number of hydrogen molecules in the right container.

Explanation:

Given:

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Molar mass of hydrogen, $M_H=2$

We know ideal gas law as:

$PV=nRT$

where:

P = pressure of the gas

V = volume of the gas

n= no. of moles of the gas molecules

R = universal gs constant

T = temperature of the gas

∵ $n=\frac{m}{M}$

where:

m = mass of gas in grams

M = molecular mass of the gas

∴Eq. (1) can be written as:

$PV=\frac{m}{M}.RT$

$P=\frac{m}{V}.\frac{RT}{M}$

as: $\frac{m}{V}=\rho\ (\rm density)$

So,

$P=\rho.\frac{RT}{M}$

Now, according to given we have T,P,R same for both the gases.

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$\rho_O.\frac{RT}{M_O}=\rho_H.\frac{RT}{M_H}$

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∴The molecules of oxygen are more densely packed than the molecules of hydrogen in the same volume at the same temperature and pressure. So, <em>the number of oxygen molecules in the left container greater than the number of hydrogen molecules in the right container.</em>

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