How does Newton’s third law explain how a rocket takes off?
A
The rocket’s accele...
How does Newton’s third law explain how a rocket takes off?
A
The rocket’s acceleration is positive, while the gas’s acceleration is negative but the direction is the same. The motion is therefore both “equal and opposite”
B
The rocket is at rest until ignition.
C
The hot gases move in one direction, while the rocket moves in the opposite direction but with equal force.
D
The hot gases cause global warming.
Answers: 2
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Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
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The motion of water in a dam serves human beings by generating electricity as it is a controlled motion. give one example for an uncontrolled motion. what effects could it cause
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