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erastovalidia [21]
3 years ago
5

IT'S URGENT PLZZZZZZZZZ HELP SOMEONE HELP PLZZZZZZZZZZZZZZZ I NEED IT PLZZZZZZZZZZZZZZZZZZ!!!

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0
At start:   PE only

At end:  KE and energy lost to friction


PE = KE + E
E  = PE - KE
    = mgh - (1/2)mv^2
    = (40)(9.8)(12) - (.5)(40)(10)^2
    = 2704J

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Answer:

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3 years ago
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natulia [17]

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3 0
3 years ago
8 <br> 7<br> /<br> 8<br> + <br> 9 <br> 13<br> /<br> 16<br> what is this in a mixed number.
FinnZ [79.3K]

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5 0
2 years ago
PLEASE HELP URGENTLY!
torisob [31]

Answer:

here's your answer hope it helps!!

7 0
2 years ago
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