can u answer this question?

Question

How much joule is needed till one jet (plane) that its weight is equal's 7*10 5 N , go up till 10 km height from the surface of the ground?

Answer 1

Maybe you should do your own homework. We are not helping you at all if we answer the question for you. Try and show us the work you have done and where you are stuck.

Answer 2

Work = force x distance.

7*10^5 N x 1*10^4 m = 7*10^9 N·m = 7,000,000,000 joules.

(P.S. If you say "7,000,000,000 joules" in your homework the answer will be WRONG. I leave it up to you to determine what is wrong with this answer... because it's up to you to learn the material in your courses!)

Answer 3

There are two ways to solve this question

The direct way

Joules reqd = 7 x 10^5 x 10x10^3 J

The other way is to take the change in gravity in account.

Answer 4

taking a constant value for gravity: g = 9.8 m/s²
U = (mg)h; where mg is weight: 7*10^5 N
U = (7*10^5 N)(10000 m) = 7*10^9 J = 7 GJ

Answer 5

quantum of work involved in lifting the jet plane to a height mentioned will be as worked above 7Giga Newton.

the actual force needed will be based on the actual time constraint.

F=m*(v-u)/t

energy is the capacity to do work.

work=force*distance

also

force=mass*velocity

Answer 6

Nope.

Wait. You said: "can u answer this question?" Yes I can answer that question. I did answer that question. Any answer is an answer to that question.
I cannot answer the other question however. Which is an answer so yes I did. I think what you meant to ask is: Can you answer the following question?

In which case i'd have said: "I don't know" which is still an answer and so yes.. I can answer that question too.

I'M A FREAKING GENIUS.

thanks for the 2 points.

Answer 7

As long as the jet is flying high and flying safely,who cares!!!!