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Bezzdna [24]
3 years ago
9

The diameter of a ping pong ball is 4.0cm. find the length in kilometers of a row of 6.02×1023 ping pong balls.

Mathematics
2 answers:
Sindrei [870]3 years ago
7 0
Let ping pong ball be called PPB
 To solve this problem you must know the following unit change
 1km = 1000m
 1m = 100cm
 Then, applying the change of units, we have that the length in kilometers is:
 6.02x10 ^ 23PPB x 4.0cm / 1PPB x 1m / 100cm x 1km / 1000m = 2.41 x 10 ^ 19 km
Vikentia [17]3 years ago
3 0
The length is determined by multiplying the number of balls with the diameter. The answer that would come out of this is in units of centimeters.

    L = (6.02 x 10^23 balls)(4 cm/ball)
    L = 2.408 x 10^24 cm

Then, we use the proper conversion factor to convert centimeter to kilometer.

     L = (2.408 x 10^24 cm)(1 m/100 cm)(1 km/1000 m)
       L = (2.408 x 10^24)(10^5)
        

The answer to this item is 2.408 x 10^19 km. 
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mestny [16]
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150+1=151, nope
2+75=77, nope
3+50=53, nope
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the numbers are 6 and 25
7 0
3 years ago
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Rotate this figure 270 degrees clockwise
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it's the third answer

Step-by-step explanation:

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2 years ago
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Serial numbers for a product are to be made using 2 letters followed by 3 digits the letters are to be taken from the first 6 le
kipiarov [429]

Answer:

Step-by-step explanation:

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The alphabets are bonded to first 6 ( A, B, C, D, E, F) where as digits are 10 (say 1 to 10).

Let the serial number be S1 S2 S3 S4 S5.

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For Digits

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So the possible combinations for S3 S4 S5 = 10x9x8=720

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7 0
3 years ago
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Lady_Fox [76]
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3 0
3 years ago
if A= (-1, -3) and B= (11, -8) what is the length of AB A) 14 units B) 11 units C) 13 units D) 12 units
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\sqrt{(-1 - 11)^2 + (-3 + 8)^2}

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Answer is C)


5 0
3 years ago
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