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Bumek [7]
3 years ago
7

Please answer asignment due today

Physics
1 answer:
Iteru [2.4K]3 years ago
4 0

Answer:

Give me some time okkkk

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39. What is the change in momentum for a 5,000 kg ship in
Ivan

Answer:

Change in momentum is zero.

Explanation:

The following data were obtained from the question:

Mass (m) = 5000 kg

Time (t) = 1 h

Net force (F) = 0

Change in momentum =?

Force = Rate of change of momentum

0 = change in momentum

Change in momentum = 0

We can see from the above illustration that the net force is zero. Thus, the change in momentum is also zero.

6 0
2 years ago
force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching it
Yanka [14]

Answer:

Given force=10lb

L1=4in converting to feet

But 0.08333ft= 1 inch

Then 4 inch is 0.3332

6inch is 0.49998

But hookes law states

F=Kx where F is force,K is the force constant ,X

K=F/X=10/0.3333=30N/m

Integrating this

Integral of 30x with limit 0.333 to 0.5

F=30x^2/2=15x^2substing the limit

F=(15(0.5^2-0.33^2)=2.08ft-lb

Explanation:

3 0
3 years ago
What two sources of friction do you have to overcome when you are walking?
tatuchka [14]
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Gravity is pushing you down on the earth while the friction from the ground is pushing you up. Those are the two frictions you must overcome when walking.






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Why does changing the shape of an object have no effect on the density?
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Because the object is still made of the same material 
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What is the answers
andriy [413]
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