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Vaselesa [24]
3 years ago
12

A motor does 8000j of work in 20 seconds. What is the power of the motor

Physics
1 answer:
lozanna [386]3 years ago
5 0
Power = work / time = 8000J / 20s = 400W

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A 125kg man buy a 6kg watermelon, a 3kg cantaloupe, and 6kgs of potatoes, he walks home with his purchases in a large bag. His w
Stells [14]

Answer:

350N

Explanation:

Given parameters:

Mass of the man = 125kg

Mass of the watermelon = 6kg

Mass of cantaloupe  = 3kg

Mass of potatoes  = 6kg

Acceleration  = 2.5m/s²  

Unknown:

Force required to get home  = ?

Solution:

To find this force we use;

    Force  = mass x acceleration

mass  = 125 + 6 + 3 + 6  = 140kg

 So;

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3 years ago
The brachialis attaches to the forearm .035 m from the elbow at an angle of 32 deg. If the brachialis produces 750 N of force, w
jek_recluse [69]

Answer:

XY=636N

Explanation:

From the question we are told that:

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 XY=750cos 32\textdegree

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3 years ago
What is true about energy that is added to a closed system?
Setler [38]

The correct answer is B

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Answer is:

Electric field.
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Some one help my science homework is due tomorrow and I'm so stuck with question 8-9, and 11-12
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Off the top of my head, I only know 9 and 11, so I'll answer those two.

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