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Darya [45]
3 years ago
9

You have to push a heavy box across three surfaces: a grassy field , ice rink, and a concrete playground. Which surface will be

easiest to push the box across and WHY ?
Physics
1 answer:
alukav5142 [94]3 years ago
7 0

Answer:

The ice rink because the ice is the surface with the lowest friction.

Explanation:

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How does pressure affect surface tension
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the effect of pressure on surface tension can be attributed in part to absorption of gas at the surface of the liquid and in part to an intrinsic decrease in density of the liquid in the neighborhood of the surface.

In the case of liquids , Owing to contact forces between the edge of the surface and the vessel, the surface acquires a curvature, and if the liquid rises up at the edges where it meets the vessel, the pressure will be less in the liquid than in the air, for points just below and just above the surface. The vessel exerts an upward force on the liquid. This is simply a matter of looking at the directions of forces acting, knowing that the surface is under tension.

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3 years ago
2.
Afina-wow [57]

Answer:

2.76×10⁻¹⁰ C

Explanation:

Applying,

V = W/q................... Equation 1

Where V = Electric Potential, E = Electric potential energy, q = charge.

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q = W/V................ Equation 2

From the question,

Given: W = 4.26×10⁻⁸ J, V = 154.5 V

Substitute these values into equation 2

q = 4.26×10⁻⁸/154.5

q = 2.76×10⁻¹⁰ C

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Which amusement park ride utilizes periodic motion?
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Any ride that oscillates back and forth or moves only in a complete circle utilizes periodic motion.
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C. realize who or what one wants to be

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Has a definite shape and definite volume. Question 4 options: liquid gas solid
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Answer:

solid

Explanation:

solid

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