A space plane skims the edge of space at 4000 miles per hour. Neglecting altitude, if the circumference of the planet is approx
1 answer:
Answer:
6 hour 20 minutes
Step-by-step explanation:
We are given that a space plane skims the edge of space at 400 miles per hour.
Circumference of the planet=25000 miles approximately
We have to find the time taken by the plane to travel around the planet.
Speed of plane=4000 miles per hour
Total distance traveled by the plane= approximately 25000 miles
Because plane travel in circular path therefore, distance
traveled by plane=Circumference of planet
Time =
Substitute the values then we get
Time =
Time=
1 hour=60 minutes
Hence, the plane takes time to travel around the planet=6 hour 20 minutes
You might be interested in
Given:
A company wants to select 1 project from a set of 4 possible projects.
Consider the options are:
a.
b.
c.
d.
To find:
The constraints that ensures only 1 will be selected.
Solution:
It is given that the company wants to select 1 project from a set of 4 possible projects. It means the sum of selected projects must be equal to 1.
Therefore, the correct option is (a).
<h3>Answer 1a :- </h3>
Here we can solve this question using<em> </em><em>Unitary</em><em> </em><em>Method</em><em> </em><em>.</em> As ;
→ In 17hrs the boat travels 452km
→ In 1hr the boat will travel 452km/17
→ In 9hrs the boat will travel 452/17km * 9 = 239.29km
→ A car can travel 156km on 13L gasoline .
→ It will travel 1km on 13/156L of gasoline .
→ It will travel 480km on 13/156*480L = 40L of gasoline .
→ A boat can go 180 miles on 60L gasoline.
→ It will go 1mile in 60/180L of gasoline.
→ It will go 306 miles in 60/180*306L = 102L of gasoline .
→ On 51L of gasoline a car can go 408km
→ On 1L of gasoline car will go 408/51 km
→ On 11L of gasoline it will go 408/51*11L = 88km