A force of 20 N acts on a rocket for 350 s, causing the rocket's velocity to increase. Calculate the impulse of the force and by
1 answer:
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Answer:
The second engine with no cars will accelerate more.
Explanation:
Since the engines are identical so they hacve the same mass. The first engine has 10 cars attached which adds more mass to it whereas second engine has no cars attached.
Therefore second engine is lighter in mass than the first one.
<u>We know from the Newton's second law of motion:</u>
Now, according to question both the engines exert same force for moving.
We see that :
So more is the mass, lesser is the acceleration, hence the second engine with no cars will accelerate more.
Answer:
The final image relative to the diverging lens at 9.0 cm.
Explanation:
Given that,
Focal length of diverging lens = -6.18 cm
Focal length of converging lens = 12.5 cm
Distance of object = 36.9 cm
We need to calculate the image distance of converging lens
Using formula of lens
We need to calculate the image distance of diverging lens
Now, object distance is
Using formula of lens
The image is formed 9.0 cm to the left of the diverging lens.
Hence, The final image relative to the diverging lens at 9.0 cm.