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ale4655 [162]
3 years ago
10

Can someone please help me with this problem?

Mathematics
1 answer:
Galina-37 [17]3 years ago
4 0

Answer:

Move the top side down 2 meters

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when measuring length 9 butcher knives are approximately equal to 16 steak knives. How many steak knives are equal to 63 butcher
kap26 [50]

I think I would be 48 steak knives


7 0
3 years ago
If a 100 m. diameter wind turbine is exposed to 7 m/s wind with an air density of 1.25 kg/m what is the electricity produced by
Yuliya22 [10]

Answer:

electric energy = 980 J

Step-by-step explanation:

Given,

Diameter of wind turbine = 100 m

Speed of wind,v = 7 m/s

Density of air = 1.25 kg/m

Hence, the total mass of air enters into turbine =Speed of wind x Diameter of wind turbine

                                                                             = 1.25 x 100

                                                                              = 125 kg

Hence, total mechanical energy of turbine can be given by,

E\ =\ \dfrac{1}{2}.m.v^2

    =\ \dfrac{1}{2}\times 125\times 7^2

    = 3062.5 J

Efficiency of turbine = 32%

Hence,

total electric energy = 32% of mechanical energy

                                  =\dfrac{32}{100}\times 3062.5\ J

                                  = 980 J

So, the total electric energy produced by the turbine will be 980 J.

6 0
3 years ago
If you have to slow your car when your driving down a hill you should
ludmilkaskok [199]

Answer:

I would say so

Step-by-step explanation:

If you are speeding down a hill that could be dangerous for the car and other people around

5 0
4 years ago
Which of the following equations is equivalent to y = 2x + 1?
jeyben [28]

Answer:

C. -2x+y=1

Step-by-step explanation:

If we move 2x to the other side of the equation, its sign will change from positive to negative.

5 0
3 years ago
Read 2 more answers
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6 0
4 years ago
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