Answer:
The thrust of the jet engine is 4188.81 N.
Explanation:
Given that,
Speed = 260 m/s
Rate in air= 53.3 kg/s
Rate of fuel = 3.63 kg/s
Relative speed = 317 m/s
We need to calculate the rate of mass change in the rocket
Using formula of rate of mass
Put the value into the formula
We need to calculate the thrust of the jet engine
Using formula of thrust
Put the value into the formula
Hence, The thrust of the jet engine is 4188.81 N.
Answer:
<h2>157,300 J</h2>
Explanation:
The kinetic energy of the car can be found by using the formula
m is the mass
v is the velocity
From the question we have
We have the final answer as
<h3>157,300 J</h3>
Hope this helps you
Answer:
2.25 seconds
Explanation:
Change in Acceleration = change in velocity / time interval
time interval = change in velocity / change in acceleration
= (9 - 0) / (0 - -4) = 9/4
= 2.25 seconds
Sound waves are mechanical(?) waves?