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Fantom [35]
11 months ago
5

A plane flies with an average

Physics
1 answer:
ankoles [38]11 months ago
8 0

Answer:-4432.5 m

Explanation:trust

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A rock with a mass of 8 kg falls straight down from a height of 7 m. What work is done?
fenix001 [56]
F=MA
F=(8 kg)(9.8 m/s)
F= 78.4 N
W=FD
W=(78.4 N)(7 m)
W=548.8 J
How this helps
7 0
3 years ago
A mover pushes a 46.0kg crate 10.3m across a rough floor without acceleration. How much work did the mover do (horizontally) pus
Alchen [17]

Answer:

<h3>2,321.62Joules</h3>

Explanation:

The formula for calculating workdone is expressed as;

Workdone = Force * Distance

Get the force

F = nR

n is the coefficient of friction = 0.5

R is the reaction = mg

R = 46 ( 9.8)

R = 450.8N

F = 0.5 * 450.8

F = 225.4N

Distance = 10.3m

Get the workdone

Workdone = 225.4 * 10.3

Workdone  = 2,321.62Joules

<em>Hence the amount of work done is 2,321.62Joules</em>

3 0
3 years ago
Which of the following lists the composition of the Earth’s outer core?
iris [78.8K]
Well,

The outer core of the Earth is mostly composed of iron and nickel.

The correct option is C.
5 0
3 years ago
If r1 &lt; r2 &lt; r3, and if these resistors are connected in series in a circuit, which one dissipates the most power
Vesnalui [34]
All three have the same current, so that is not a factor. Wattage (power) is E*I or i^2 R. The higher the resistance, the more power dissipated. The answer is R3 because it has the highest resistance.
R3 <<<< ===== answer.
6 0
3 years ago
Adita lifts a book from the floor, carries it across the room, and places it on a high shelf. When is Adita doing work on the bo
noname [10]

She does work from the moment she touches the book until she lets it go. Work is anything that requires energy. Therefore, she is working as she picks up the book, carries it, and when she is lifting it onto the shelf.

5 0
3 years ago
Read 2 more answers
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