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2 years ago

245289457u2895785/+55891235723895718957=

Physics

2 answers:

Bingel [31]2 years ago

6 0

why Is there just a random "u" in the middle of the equation awa

thequestion is impossible to do btw

Imao the u in the middle doesn't makes sense

if you edit the question I'll help you w it)

have a good day bro cya

Snezhnost [94]2 years ago

6 0

Answer:

Thxs for the points

Explanation:

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Answer:

1700 kg

Explanation:

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2 years ago

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Answer:

Minimum work = 5060 J

Explanation:

Given:

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Let 'W' be the work done by the worker in lifting the bucket.

So, we know from work-energy theorem that, work done by a force is equal to the change in the mechanical energy of the system.

Change in mechanical energy is equal to the sum of change in potential energy and kinetic energy. Therefore,

$\Delta E=\Delta U+\Delta K\\\\\Delta E= mgh+\frac{1}{2}m(v^2-u^2)$

Therefore, the work done by the worker in lifting the bucket is given as:

$W=\Delta E\\\\W=mgh+\frac{1}{2}m(v^2-u^2)$

Now, plug in the values given and solve for 'W'. This gives,

$W=(20\ kg)(9.8\ m/s^2)(25\ m)+\frac{1}{2}(20\ kg)(4^2-0^2)\ m^2/s^2\\\\W=4900\ J +160\ J\\\\W=5060\ J$

Therefore, the minimum work that the worker did in lifting the bucket is 5060 J.

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2 years ago

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3 years ago

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What is 9.7e-6 as a decimal

skelet666 [1.2K]

Answer:

See below

Explanation:

9.7e-6 is 9.7 x 10^-6 move the decimal 6 to the LEFT to get

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