option 2 is your answer... thanks .. hope it helps
Answer:
(a) Mn = M₁ + (n-1) (M₂ -M₁) = 1 + (n- 1) 1 = n (b) n > 10 (exceed 10) or n =11 (c) n >50 or n= 51
After making a journey of 51 times, the rocket will be discarded
Explanation:
Solution
(a) Let Mn denotes the number of maintenance visits after the nth journey
Then M₁ = 1 , M₂ = 1 +M₁ = 2, M₃ = 1 +M₂ = 3
We therefore, notice that M follows an arithmetic sequence
So,
Mn = M₁ + (n-1) (M₂ -M₁)
= 1 + (n- 1) 1 = n
or Mn =n
(b) For what value of n we will get fro Mn > 10
Thus,
n > 10 (exceed 10) or n =11
(c)Similarly of Mn is greater than 50 or Mn>50, the rocket will not be used or reused
So,
n >50 or n= 51
After making a journey of 51 times, the rocket will be discarded
Given:
Pressure, 
= 1300 kPa
Temperature, 
= 
= 100 kPa
velocity, v = 40 m/s
A = 1
Solution:
For air propertiess at
= 1300 kPa
=
= 793kJ/K
= 
and also at
= 100 kPa
= 401 KJ/K
= 
a) Mass flow rate is given by:
Now,
= 46.51 kg/s
b) for the power produced by turbine, 
= 18.231 MW
The principles referred to in the question are called biomechanical principles. Some of them are:
- Principles of Force; and
- The principle of impulse direction.
<h3>What principle is most relevant to jumping?</h3>
The principle that is most relevant to jumping is called Angular Momentum.
<h3>
What is Angular Momentum?</h3>
Simply defined, this refers to the velocity of the rotation of a body around an axis or a fixed point.
Other principles of biomechanics are the principles of:
- linked segments.
- impulse-causing momentum.
- the stretch-shorten cycle.
- summing joint forces.
- continuity of joint forces.
See more about biomechanical principles at:
brainly.com/question/1087668
