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frutty [35]
3 years ago
5

Let’s say a small person with a mass of 50 kg walks up two flights of stairs. A heavy person with a mass of 105 kg walks up the

same stairs. Who did more work and why?
Please help me, I'm very confused
Physics
1 answer:
polet [3.4K]3 years ago
3 0

Answer:

Heavier person

Explanation:

Work = force × distance.  In this case, force = weight and distance = height of the stairs.  For both people, the height of the stairs is the same.  Since the heavier person has more weight, they did more work.

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Answer:

Image result for If the world was not tilted, what would happen to the people living on Earth

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Explanation: i looked up the answer

8 0
3 years ago
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A golfer hits her tee-shot due north towards the fairway. Her shot has an initial velocity of 60 m/s. A 15 m/s wind is blowing i
vovangra [49]

Answer:

c=71.4m/s

\theta=8.54\textdegree

Explanation:

From the question we are told that

Initial velocity of 60 m/s

Wind speed V_w= 15 m/s \angle  45 \textdegree

Generally Resolving vector mathematically

  sin(45\textdegree)15=10.6\\cos(45\textdegree)15=10.6

Generally the equation Pythagoras theorem is given mathematically by

c^2=a^2+b^2

c^2=10.6^2 +(10.6+60)^2

c=\sqrt{10.6^2 +(10.6+60)^2}

Therefore Resultant velocity (m/s)

c=71.4m/s

b)Resultant direction

Generally the equation for solving Resultant direction

\theta=tan^-1(\frac{y}{x})

Therefore

\theta=tan^-1(\frac{10.6}{70.6})

\theta=8.54\textdegree

7 0
3 years ago
All atoms of an element have the same number of__But within the same element there may exist atoms that have__numbers of__.Atoms
Elza [17]

Answer:

isotopes

Explanation:

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The correct answer is letter A
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DedPeter [7]
I think it might be A. I’m sorry if I’m wrong
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3 years ago
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