The sum of all forces acting on an object
Answer:
It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second. It is named after the English physicist James Prescott Joule (1818–1889).
Explanation:
Answer: Physical is the blank space
Explanation: Your welcome
1500m = 1 sec
9000m/1500 = 6
So, it would take 6 sec to go 9000m
0.5MN
Explanation:
Given parameters:
Mass flow rate = 249kg/s
speed of exhaust = 2km/s
Unknown:
Thrust of the rocket = ?
Solution:
Thrust is a force that was captured in the newton's third law which states that "action and reaction are equal and opposite".
Here, the thrust is the force that was exerted by the rocket engine.
Thrust of the rocket = mass flowrate x speed of exhaust
Now we have to convert km/s to m/s
1000m = 1km
2 x x = 2000m/s
Thrust = 249 x 2000 = 498,000N
To MegaNewton, divide by 1000000; this gives 0.5MN
Learn more:
Thrust brainly.com/question/11411375
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