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Delicious77 [7]
2 years ago
10

What is the purpose of delivering medical aid through drones

Physics
1 answer:
Yanka [14]2 years ago
8 0
Drones can help overcome transport challenges and delays in the delivery of small, low weight supplies, through the re-supply of essential medicines and delivery of medical diagnostic kits and return samples.
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A 4 kg object moving to the left collides with and sticks to a 3 kg object moving to the right. Which of the following is true o
madam [21]

Answer:

D. The motion cannot be determined without knowing the speeds of the objects before the collision.

Explanation:

This question is tricky! We know the object moving to the left has a greater mass than the one moving to the right. We'd <em>assume</em> they would move to the left because the leftwards object has a greater mass, right?

Not. So. Fast.

We can solve for the objects' final velocity using the formula for momentum, m₁v₁ + m₂v₂ = (m₁ + m₂)v .

Now here's where the trap is sprung: <em>we don't think about the equation</em>. This shows that the final velocity of the objects and the direction depends on both the mass of the objects <em>and</em> their initial velocity.

Basically, what if the 3 kg object is moving at 1 m/s and the 4 kg object is moving at –0.5 m/s? The objects would move to the <em>right</em> after the collision!

Do we know the velocity of these objects? No, right?

That means we <em>can't</em> determine the direction of their motion <u>unless we know their initial, pre-collision velocity</u>. This question is tricky because we look at the 4 kg vs. 3 kg and automatically assume the 4 kg object would dictate the direction of motion. That's not true. It depends on velocity as well.

I hope this helps you! Have a great day!

4 0
3 years ago
Is water wet my friends have been arguing about this for about 3 months now but now it is time to hear other people
nirvana33 [79]
Water is not wet, wet is a state of being. Water, however, can make things wet.
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Does heat always give of heat
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Yes it does (not to be  mean its kinda stupid for you to ask)
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A 18.0-kg rock is sliding on a rough, horizontal surface at 7.10 m/s and eventually stops due to friction. the coefficient of ki
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A = .3*g = 2.94 m/s² 

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<span>W = E/t = ½mv²/t = ½*40*9²/3.061 = 529.2 watts</span>
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7. MANSON'S FAVORITE SINGING GROUP WAS...
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