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Lapatulllka [165]
3 years ago
8

Object B has a mass of 10kg. Object b collides with another object. If the momentum of object b after collision is 18kg•m/s18kg.

m/s, its volocity is_____m/s
Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
8 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

The answer is the first choice.

The maximum calories per week for the dog is 4900

One week is seven days which means:

maximum calorie/day = \frac{4900 calorie/day}{7 day}=700 calories/day

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Natali5045456 [20]

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Step-by-step explanation:

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3 years ago
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8 0
3 years ago
The length of a diagonal of a square is 8 mm. Find the perimeter of the square.
Sphinxa [80]
The diagonal of a square is given by:
 d = root ((L) ^ 2 + (L) ^ 2)
 Where,
 L = side of the square.
 So we have to clear L:
 d ^ 2 = (L) ^ 2 + (L) ^ 2
 d ^ 2 = 2 (L) ^ 2
 (L) ^ 2 = (d ^ 2) / 2
 L = root ((d ^ 2) / 2)
 Substituting
 L = root (((8) ^ 2) / 2) = 5.66 mm
 Then, the perimeter of the square is given by:
 P = 4L = 4 * (5.66) = 22.64mm
 answer
 The perimeter of the square is 22.64mm or 
<span> 22.8 mm 
</span>
4 0
3 years ago
Gerri spends 1/21 of her money on pencils and 2/21 on paper. What fraction of her money does she spend. Give the answer in simpl
BigorU [14]

Answer:

Gerri spends 1/7 (A).

Step-by-step explanation:

If Gerri spends 1/21 of her money on pencils and 2/21 of her money on paper, adding these two fractions together will give us the total fraction of her money that she spent.  Since 1/21 and 2/21 have the same denominator, we can add the numerators to get 3/21.  However, fractions must always be in simplest form, meaning if the numerator (top number) and denominator (bottom number) can both be divided evenly by the same factor, then the fraction can be simplied to lower numbers.  In this case the number 3 and the number 21 can both be divided evenly by 3:  (3÷3)/21÷3) = 1/7.

3 0
3 years ago
Read 2 more answers
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