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forsale [732]
3 years ago
9

How much work must be done on a 1000kg car to increase its speed from 1 m/s to 2 m/s

Mathematics
1 answer:
worty [1.4K]3 years ago
6 0

Answer: its is you figer it out okay haha

Step-by-step explanation: im jokeing

Kinetic energy = 1/2 M V2

At the lower speed, the car's KE is (500) (1)2 = 500 joules

At the higher speed, the car's KE is (500) (2)2 = 2,000 joules

The difference is the energy i.e. the work you have to put into it

to raise the speed from 1 m/s to 2 m/s.

(2,000 - 500) = 1,500 joules there u go :D

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A knitter wants to make a rug for a dollhouse. The length of the rug will be 2 inches more than it’s width. The total area of th
steposvetlana [31]

The width of the rug is 3 inches

Step-by-step explanation:

A knitter wants to make a rug for a dollhouse

  • The length of the rug will be 2 inches more than it’s width
  • The total area of the rug ( in square inches) based on the width w of the rug (in inches ) is given by A(w) = w (2 + w)
  • The desired area of the rug is 15 square inches

We need to find the width of the rug

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Learn more:

You can learn more about the quadratic equation in brainly.com/question/9328925

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\huge{\underline{\underline{\boxed{\sf{\purple{ǫᴜᴇsᴛɪᴏɴ}}}}}}

<h3> (8) An aeroplane takes off from Dubai located in the +4 time zone at 13:00. It arrives in Manila in Philippines, located in the +8 time zone at 20:00.</h3>

  • (1) Find the time in Manila when the aeroplane departsfrom Dubai.

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\huge{\underline{\underline{\boxed{\sf{\ref{Answer}}}}}}

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  • (iii) 16.00

\large\huge\green{\sf{♥ Explanation♥}}

<h3>Dubai located +4 zone, takes off at 13.00,</h3>

∴Hence, at standard it is 13.00-4 =99.00 STD talk

off reached at Manila +8 Zone at 20.00

∴Hence at standard & 2000 -8

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(ii) duration = 3 hours.

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_____________________

Ans

i)17.0.0 (ii) 3 hours (iii) 16.00

________________________

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