5. Calculate how long in seconds it will take for a light pulse to travel from earth to the moon. The distance from earth to moo
1 answer:
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Answer:
h≅ 58 m
Explanation:
GIVEN:
mass of rocket M= 62,000 kg
fuel consumption rate = 150 kg/s
velocity of exhaust gases v= 6000 m/s
Now thrust = rate of fuel consumption×velocity of exhaust gases
=6000 × 150 = 900000 N
now to need calculate time t = amount of fuel consumed÷ rate
= 744/150= 4.96 sec
applying newton's law
M×a= thrust - Mg
62000 a=900000- 62000×9.8
acceleration a= 4.71 m/s^2
its height after 744 kg of its total fuel load has been consumed
h= 58.012 m
h≅ 58 m
Answer:
The velocity of the flow at point 1 is nine times greater than the velocity at point 2.
Explanation:
We know that the same volume of water entering through point 1 must exit through point 2.
The volume of water per unit of time or the volumetric flow is defined by:
If
therefore