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Vesnalui [34]
3 years ago
8

Who does more work - a man who lifts a large box from the ground up into the back of a truck, or a man who puts the same box on

a trolley and wheels it up a ramp into the truck?
•the man who lifts it
•the man who uses the trolley
•they do the same work


Please i need help ASAP!!! *will mark brainliest if right*​
Physics
1 answer:
Viefleur [7K]3 years ago
4 0
Answer :
The man who uses the trolley
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sladkih [1.3K]

Answer:

P = 7196 [kPa]

Explanation:

We can solve this problem using the expression that defines the pressure depending on the height of water column.

P = dens*g*h

where:

dens = 1028 [kg/m^3]

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h = 700 [m]

Therefore:

P = 1028*10*700

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3 years ago
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zhenek [66]

Answer:

0.1 m

Explanation:

F = Force exerted on spring = 3 N

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As the energy of the system is conserved we have

Fx=\dfrac{1}{2}kx^2

\\\Rightarrow x=\dfrac{2F}{k}

\\\Rightarrow x=\dfrac{2\times 3}{60}

\\\Rightarrow x=0.1\ m

The position of the block is 0.1 from the initial position.

6 0
3 years ago
If an element's atomic mass and atomic number are known, what else can be determined? Give an example to demonstrate your unders
Alenkinab [10]

Answer:

Explanation:

If an elements atomic mass and number are known you can also determine the number of protons and neutrons it has. You can also determine where it is on the periodic table. For example, if a element had a atomic mass of 10 then it would be higher up on the table then one with a mass of 20. Btw I do apex too.

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irina [24]

Answer:

Answer for A

Explanation:

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If r2 becomes r2=5r

F2=GmM/(25r^2)

Multiply with 25 gives to maintain the same force

I.e.,25F2=F1

F2=G(25m)M/25r^2=F1

By the factor 25 would change to increase to same.

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2 years ago
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Answer:

Sorry bro I don't even know the answer

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