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3 years ago

Egocentrism exists during which of Piaget's stages?

Physics

1 answer:

Goryan [66]3 years ago

7 0

Answeri believe it is the first one but not sure

Explanation:

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2 Points

DochEvi [55]

Answer:

For me I thinks is B

8 0

2 years ago

Read 2 more answers

A sample of argon gas has a volume of 6 liters at a temperature of 7*C. What volume does the gas occupy at 147*C?

Nady [450]

Explanation:

Given parameters:

Volume of gas = 6L

Initial Temperature = 7°C to kelvin = 273 + 7 = 280K

Final temperature = 147°C to kelvin = 273 + 147 = 420K

Unknown:

Final gas volume = ?

Solution:

To solve this problem, we are going to use Charles's law. Charles's law states that "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant".

Mathematically;

$\frac{Initial volume }{Initial temperature } = \frac{final volume }{final temperature}$

Input the parameters;

$\frac{6}{280} = \frac{V}{420}$

V = $\frac{6 x 420}{280}$ = 9L

learn more:

Charles's law brainly.com/question/7434588

#learnwithBrainly

8 0

3 years ago

Please help me fast and i brainliest!! Two balls are released from the same height. Ball A is released on the surface of Earth,

dolphi86 [110]

Answer:

If they both start at the same height then most likely that means that each has an intical velocity and a net force sooooo ball A 19.6

Explanation:

6 0

3 years ago

The drawing shows a bicycle wheel resting against a small step whose height is h = 0.110 m. The weight and radius of the wheel a

Pavel [41]

Answer:

$F=27.39N$

Explanation:

Take sum of torques at the point the step touches the wheel, that eliminates two torques

Σ $T=T_{N}+T_{f}+T_{W}$

Since we are looking for when the wheel just starts to rise up N-> 0 so no torque due to normal force

$T_{N}=0$

The perpendicular lever arm for the F force is R-h

$T_{f}=F*(r-h)$

And the T of gravity according to the image

$T_{W}=W*(\sqrt{r^2-(r-h)^2}$

Σ $T=0$

$T_{N}+T_{f}+T_{W}=0$

$F*(r-h)+W*(\sqrt{r^2-(r-h)^2}=0$

$F=\frac{W*(\sqrt{r^2-(r-h)^2}}{r-h}$

$F=\frac{24.9 N*(\sqrt{0.336^2-(0.336-0.110)^2}}{(0.336-0.11)}$

$F=27.39N$

4 0

2 years ago

The magnetic lines of force always travel from north to south true or false

kumpel [21]

Answer:

True

Explanation:

Magnetic field lines outside of a permanent magnet always run from the north magnetic pole to the south magnetic pole. Therefore, the magnetic field lines of the earth run from the southern geographic hemisphere towards the northern geographic hemisphere.

7 0

1 year ago