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slega [8]
3 years ago
5

2. How can people know that they've learned?

Physics
1 answer:
photoshop1234 [79]3 years ago
4 0
Answer: People know that they jap e learned by their mistakes or by someone ya being them something
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Plz help me answer this question if u answer them all correctly and respectfuly i will make u brainliest.
Musya8 [376]
Please explain more pls
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3 years ago
A person is standing on a level floor. His head, upper
BabaBlast [244]

Answer:

y_{cg} = 1.03 m

Explanation:

Given data:

weigh (head+arms + head) w_1 = 438 N

centre of gravity y_1= 1.28 m

weigh (upper leg) w_2 = 144 N

Center of gravity y_2 = 0.760 m

weigh ( lower leg + feet) = 87 N

centre of gravity = y_3 = 0.250 m

location of center of gravity = \frac{w_1 y_1 + w_2 y_2 + w_3 y_3}{w_1 +W_2 +w_3}

y_{cg} = \frac{438 \times 1.28 + 144\times 0.760 + 87 \times 0.250}{438+144+87}

y_{cg} = 1.03 m

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4 years ago
a soccer player kicks a ball with a speed of 30 m/s at an angle of 10. how long does the ball stay in the air?
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4 years ago
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In a compound chemical energy is contained in the what ?
vaieri [72.5K]
<span>In a compound chemical energy is contained in the "Bonds" between the elements. 

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A cook removes a one-gallon pot of hot soup from a stove and places it in an ice-water bath to cool. which is the best cooling p
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