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grandymaker [24]
2 years ago
11

Question 4

Physics
2 answers:
EleoNora [17]2 years ago
8 0

Answer:

D. 75 watts

Explanation:

brainliest please? i've just answered 3 of your questions and they were all correct! :) i hope i helped!

Artist 52 [7]2 years ago
4 0

Answer:

(D) =75 WATTS

Explanation:

p(<em>p</em><em>o</em><em>w</em><em>e</em><em>r</em><em>)</em><em>=</em><em>i</em><em>(</em><em>c</em><em>u</em><em>r</em><em>r</em><em>e</em><em>n</em><em>t</em><em>)</em><em>×</em><em>v</em><em>(</em><em>v</em><em>o</em><em>l</em><em>t</em><em>a</em><em>g</em><em>e</em><em>)</em>

p = 0.625 × 120

p =75 watts

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Answer: M = 1797.75 kg

Explanation:

given parameters are;

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Momentum P is the product of mass and velocity. That is, P = MV

Substitute V and P into the formula

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Make M the subject of formula

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umka21 [38]

Friction:

Friction is the resistive force that acts on the body in a direction opposite to the direction of motion of the same object.

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For example, if the object of mass m is moving along the horizontal surface, the normal force acting on the object is mg.

Thus, the frictional force acting on the object is,

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\mu\text{ is the coefficient of friction}

The diagrammatic representation of the frictional force acting on the object is,

2. The frictional force acting on the object depends upon the nature of the surface in contact with the object.

3. The frictional force does not depend upon the area of contact of an object with the surface.

4. The kinetic friction acting on the object is independent of the velocity of the object.

5. The coefficient of static friction is more than the coefficient of kinetic friction.

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storchak [24]
It is C the humidity
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3 years ago
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Iteru [2.4K]

Explanation:

Unclear question. The clear rendering reads;

"Into a U-tube containing mercury, pour on the other side sulfuric acid of density 1.84 and on the other side alcohol of density 0.8 so that the levels are in the same horizontal plane. The height of the acid above the mercury being 24 cm. What is the height of the bar and what variation of the level of the acid, when the mercury density is 13.6?

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