Jonas Salk was an American medical researcher and virologist. He discovered and developed one of the first successful polio vaccines in the 1950's.

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3 years ago

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An airplane flies 3080 km from Houston to New York in 4 hours what is the speed of the airplane

Lorico [155]

Answer:

The speed of the airplane is approximately 770 km/h (214 m/s).

Explanation:

Speed = $\frac{distance}{time}$

Distance = 3080 km

Time = 4 hours

speed = $\frac{3080}{4}$

= 770

speed = 770 km/h

The speed of the airplane is 770 km/h.

Distance = 3080 km

But,

1 000 m = 1 km

3080 km = 3080000 m

distance = 3080000 m

Time = 4 hours

60 seconds = 1 minute

60 minutes = 1 hour

Thus, 4 hours = 60 x 60 x 4

= 14400 seconds

Therefore,

speed = $\frac{3080000}{14400}$

= 213.8889

speed ≅ 214 m/s

The speed of the airplane is approximately 214 m/s.

3 0

3 years ago

Summarize Albert Fall’s role in the Teapot Dome scandal.

zimovet [89]

Answer:The Teapot Dome scandal was a bribery scandal involving the administration of United States President Warren G. Harding from 1921 to 1923. ... Convicted of accepting bribes from the oil companies, Fall became the first presidential cabinet member to go to prison; no one was convicted of paying the bribes.

Explanation:

3 0

3 years ago