Pls do question 1 part d). tysm

Physics

1 answer:

Aneli [31]3 years ago

5 0

Answer:

Explanation:

cuz its informing the length of 5 and weight on 20N

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A device has power -2 D . The device is

slavikrds [6]

Answer:

Explanation:

-vesign shows the lens is CONCAVE

f=1/power

7 0

3 years ago

What does it mean if a paint sample "matches" a known sample from a vehicle? Does this indicate the same source? Why or why not?

Mandarinka [93]

It wouldn't indicate the same source if the paint was from a different place. If the paint was the same brand and color it would be but if not then no

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3 years ago

the momentum of a spring coil when the external compressing force is removed b the difference between the final momentum and the

Fed [463]

Answer:

the correct one is b

the difference between the final moment and the initial moment

Explanation:

The momentum is related to the moment

I = ΔP

∫ F dt = p_f - p₀

where p_f and p₀ are the final and initial moments, respectively

When checking the different answers, the correct one is b

the difference between the final moment and the initial moment

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3 years ago

When a parachutist jumps from an airplane, he eventually reaches a constant speed, called the terminal speed. Once he has reache

GenaCL600 [577]

Answer:

None of the above forces on air drag on him is equal to his weight

Explanation:

In the velocity-time graph,the gradient of the curve where it is flatten shows the parachutist reaches the terminal velocity when it reaches terminal velocity which means the parachutist reaches constant velocity or speed,indicating that the acceleration of free fall(g) is zero.And according to the resultant force formula weight - air drag= mass*acceleration. so when accelerate is zero,resultant force is zero. And hence the equation will be like this: weight= air drag