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Ivanshal [37]
2 years ago
7

I will award brainliest...Please what is the work done by a man who is pulling a box of 45kg of mass by means of rope which make

s angle of 45 degrees?
Physics
1 answer:
Minchanka [31]2 years ago
3 0

Answer:

No work is done since no distance is given

Explanation:

Since no distance is given, the force is not doing any work

No work is done by the man since we do not know the distance or displacement.

Work is only said to be done when the force applied on an object moves it through a particular distance.

Work done  = Force x distance.

Since no distance is given in this problem, we can as well assume that the force applied is doing no work on the object.

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A funnel-shaped low pressure closure
cupoosta [38]
What is the rest ?? What about the funnel shaped low pressure closure??

6 0
2 years ago
It’s 1 &2 question ! please zoom in to see it clearly :)
yarga [219]

Answer:

1. C

2. D

Explanation:

<em>1</em><em>.</em><em> </em><em>as </em><em>the </em><em>object </em><em>is </em><em>stationary </em><em>despite </em><em>Jamal </em><em>applying </em><em>100N</em><em> </em><em>forces</em><em>, </em><em>it </em><em>suggests </em><em>that </em><em>the </em><em>object </em><em>i</em><em>s </em><em>applying </em><em>an </em><em>equal </em><em>amount </em><em>of </em><em>force </em><em>on</em><em> </em><em>the </em><em>opposite</em><em> </em><em>direction </em><em>that </em><em>is </em><em>opposing </em><em>the </em><em>force </em><em>applied</em><em> </em><em>by </em><em>Jamal.</em>

<em>2</em><em>.</em><em> </em><em>inertia </em><em>is</em><em> </em><em>a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.</em><em> </em>

<em>hope </em><em>it</em><em> helps</em><em>. </em><em>:</em><em>)</em>

5 0
2 years ago
what happens to the specific heat capacity of a material if it changes state? i.e. from solid to liquid
Zigmanuir [339]

Answer:

A solid substance at its melting point has less energy than the same mass of the substance when it is a liquid at the same temperature. ... This heat energy allows the change of state to happen, and the temperature remains constant during the process.

Explanation:

6 0
3 years ago
A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is crawling on an adjacent wal
asambeis [7]

Answer:

The distance is 3.1 m

Explanation:

The position vector of the fly relative to the corner of the wall is

r = (3.1, 0.5).

The distance of the fly from the corner will be calculated as the magnitude of the vector "r"

magnitude of vector  r = \sqrt{(3.1 m)^{2} + (0.5 m)^{2}} = 3.1 m

Since the numbers to be added have only one decimal place 3.<u>1</u> and 0.<u>5</u>, the result of the sum will have to have one decimal place. The result of the square root will also have one decimal place.

5 0
2 years ago
Help with this. <br><br><br><br><br><br> ....
Dovator [93]

Answer:

Explanation:

The x component is the adjacent side making up the given angle (39.4)

The vector is the hypotenuse.

The definition of the cos (x) is adjacent / hypotenuse.

cos(39.4) = adjacent / 47.3      Multiply both sides by 47.3

47.3 * cos(39.4) = adjacent      Cos(39.4) = 0.7727

adjacent = 36.55

4 0
3 years ago
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