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malfutka [58]
3 years ago
5

List 3 additional real world examples that show work being done.

Physics
2 answers:
Usimov [2.4K]3 years ago
8 0
I am walking to the end of the room holding three textbooks.
Playing tug of war
Moving boxes to move out of your house
IrinaVladis [17]3 years ago
5 0

Answer:

Explanation:

Work done is defined as the product of force and the displacement in the direction of force.

W = F × D

Work is a scalar quantity and it's SI unit is joule.

Example

1. If we hold a book and move vertically, the work is done by me.

2. Push a cart and the cart moves some distance, work is done by me.

3. Pull a cart on an inclined plane.

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The attraction between earth and the moon is an example of ________ force. the attraction between earth and the moon is an examp
Korolek [52]

The answer is gravitational force. The gravitational force between the earth and the moon is the similar as between any other two masses in space.

Newton clarified that the force of attraction between two masses is the outcome of the weight of object one multiplied by the weight of objects two multiplied by the gravitational constant divided by the space between the two masses squared. 

4 0
3 years ago
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Difference between hair dryer and heat gun
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3 years ago
A small sphere is hung by a string from the ceiling of a van. When the van is stationary, the sphere hangs vertically. However,
Paraphin [41]

Answer: 42.49 m/s^{2}

Explanation:

To solve this, we need to keep in mind the following:

While the sphere hangs it is under the effect of gravity. It is creating a Angle of 90° taking the roof as a reference.

Gravity can be noted as a Acceleration Vector. The magnitud for Earth's Gravity is a constant: 9.81 m/s^{2}

The acceleration of the Van will affect the sphere also, but this accelaration will be on the X-axis and perpendicular to the gravity. Because this two vectors are taking action under the sphere they will create a angle. This angle can be measured as a relation of the two magnitudes.

Tangent (∅) = Opossite Side / Adyacent Side

By trigonometry, we know the previous formula. This formula allows us to find the Tangent of a angle as a relation between the two perpendiculars magnitudes. In this case the Opossite Side will be the Gravity Accelaration, while the Adyancent Side is the Van's Acceleration.

(1)  Tangent (∅) = Gravity's Acceleration (G) / Van's Acceleration (Va)        

Searching for the Va in (1)

Va = G/Tan(∅)

Where ∅ in this case is equal to 13.0°

Va = 9.81m/s^{2}  / Tan(13.0°)

Va = 42.49 m/s^{2}

The vans acceleration need to be 42.49 m/s^{2}  to create an angle of 13° with the Van's Roof

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3 years ago
Which statement best defines an electric field?
dalvyx [7]
A region around a charged partical or object. Let me know if this works. Hope I could help you.
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3 years ago
The largest origin of nonpoint pollution in the united states is A) rain B) industry C) agriculture
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The answer would be : A
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