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3 years ago

Please please answer this correctly please label the numbers correctly and please write down your answers correctly

Mathematics

1 answer:

Gennadij [26K]3 years ago

8 0

Answer:

My explanation -->

Step-by-step explanation:

Go over to the left on the -4 and up 5 times and mark a dot on it.

Next, go up half a mark from 0 and put a dot there.

Then, go over to the left between the -2 and -4 and go up 5 times.

Lastly, from the 0, go down half way until the next horizontal line and place a dot there.

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To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical

denis23 [38]

Answer:

A)196J

B)-208J

C)3467J

Step-by-step explanation:

We are given that a 20 kg cylindrical mass is dropped onto the mat from a height of 1 m above the mat. During the impact, the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to only 4 cm thick.

So, The Mat gets compressed by : 10cm - 4 cm = 6 cm=0.06 m

Using Conservations of energy

Potential energy at the top = Kinetic energy at the point before touching the surface

Kinetic energy = mgh= $20 \times 9.8 \times 1 = 196 J$

Work done by the mat do to stop the fall of the cylinder = $-mg(h+0.06)=-20 \times 9.8(1+0.06)=-208 J$

Work done= $\text{Average force} \times \text{ Compression of mat}$

$208=F \times 0.06$

F=3467J

8 0

3 years ago

Use the drop-down menus to determine the best estimate for 5,984 ÷ 32. Then find the quotient.

katrin [286]

Answer: 5,984 ÷ 32 = 0,187

Ok done. Thank to me :>

3 0

2 years ago

Find all the real square roots of <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B-9%7D%7B16%7D%20" id="TexFormula1" title=" \fra

svet-max [94.6K]

Since $-\dfrac9{16}$ is negative, it doesn't have any real roots.

6 0

2 years ago

Can u guys PLEASE answer this question ASAP. THIS IS EXTREMELY URGENT

skelet666 [1.2K]

Answer:

14.55 hope this help

Step-by-step explanation:

3 0

3 years ago

If A = (0,2,3,4,9,11), B = {2,3,6,8,9,10) and C= {0,2,3,9), then (A-B) n(A-C) is

timofeeve [1]

Answer:

(A-B)n(A-C) ={ }

Wishing a nice day.

8 0

2 years ago