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Helen [10]
3 years ago
9

I have to invent something for people 65pluse so I need to know what are something old people would bye.

Engineering
1 answer:
erastova [34]3 years ago
3 0
Phones would be a great thing.
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A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies to a height of 25 mm. What is
coldgirl [10]

Answer:

d. 41.4

Explanation:

The initial diameter di = 100mm

The initial height hi {✓59m

Final height = 25 m

Final diameter = ?

Initial volume = after forging volume

D*(di)²*hi = D *(df)²*hf

D will cancel out from either sides of the equation

100² x 50 = df²x25

10000x2 = df²

20000 = df²

df = √20000

df = 141.42mm

Change in diameter = 141.42-100

= 41.42

The percentage change = 41.42/100*100

= 41.4%

The last option is the answer

4 0
3 years ago
PLEASE HELPPPPPPP!!!!,
raketka [301]


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4 0
3 years ago
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A car C is traveling up a spiral ramp at a constant and traveling as fast as it can without losing traction. The grade of the ra
arsen [322]

Answer:

26.1 ft/s²

Explanation:

See attached pictures for detailed explanation.

4 0
3 years ago
What was the role of the rotors in the enigma machine?.
Lisa [10]

Answer:

Implements a reordering of the letters of the alphabet.

Explanation: GIVE ME 5 STARS AND a HEART!!!                                      Those contacts are wired across the rotor so that each contact on the left connects to the contact on the right in some scrambled arrangement. Each rotor, therefore, implements a reordering of the letters of the alphabet, which mathematicians call a permutation.

3 0
3 years ago
Which of the following sentences is<br> punctuated incorrectly?
Harman [31]

Answer:

Um is there suppose to be a picture with the sentences on

8 0
3 years ago
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