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Delvig [45]
3 years ago
9

Math/Physics Problem (I'd be glad if you solved one of them).

Mathematics
1 answer:
Whitepunk [10]3 years ago
4 0

Answer:

19.2

76.8

Step-by-step explanation:

density × volume = mass

mass = 62.4 × (pi × (40/2)² × h)

mass = 78,374.4h

WD = m×9.8×h = 9.8mh

WD = 768,069.12h²

At h = 5

WD = 768,069.12×5²

= 19,201,728 ft-lb

= 19.2 million ft-lb

At h = 10

WD = 76,806,9.12 × 10²

WD = 76,806,912 ft-lb

= 76.8 million ft-lb

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Furkat [3]
The answer should be 13,320
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3 years ago
Use the arithmetic progression formula to find the sum of integers from 75 to 100.75,76,77....99,100.​
Sophie [7]

Answer:

The sum is 2275

Step-by-step explanation:

Given

75,76,77....99,100

Required

The sum

Using arithmetic progression, we have:

S_n = \frac{n}{2}(T_1 + T_n)

Where:

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T_n = 100 --- last term

n = T_n - T_1 + 1

n = 100 - 75 + 1 = 26

So, we have:

S_n = \frac{n}{2}(T_1 + T_n)

S_n = \frac{26}{2}*(75 + 100)

S_n = 13*175

S_n = 2275

5 0
3 years ago
PLZ HELP!!
svet-max [94.6K]

Answer: D

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Hope this helps!

Step-by-step explanation:

-MalStar

4 0
3 years ago
El 1% de las videocámaras vendidas por la Phil´s Photo Shop, tiene un defecto en su estuche. Se seleccionan al azar cuatro estuc
Volgvan

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Answer:

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Step-by-step explanation:

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__

The multiplier of 4 comes from the number of ways that 1 can be chosen from 4.

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Step-by-step explanation:

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