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2 years ago

A high-performance composite flywheel rotor can spin anywhere between 30,000 and 100,000 revolutions per minute. What

Mathematics

1 answer:

Kobotan [32]2 years ago

4 0

Answer:

Step-by-step explanation:

1 revolution will equal 360 degrees

Because of that 30,000 revolution would be 10,800,000 degrees

100,000 rev would equal 36,000,000 degrees

The range through which the composite flywheel rotates in one minute be denoted by ' F ' . (1.08 x 107)° F (3.6 x 107)°

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the figure is made up of a semicircle and a triangle. Find the area of the figure. Use pi equals 3.14

valentinak56 [21]

Answer:

The area of the figure is 63.25 square feet

Step-by-step explanation:

we know that

The area of the figure is equal to the area of semicircle plus the area of triangle

step 1

Find the area of semicircle

The area of semicircle is

$A_1=\frac{1}{2}\pi r^{2}$

we have

$r=10/2=5\ ft$ ----> the radius is half the diameter

$\pi =3.14$

substitute

$A_1=\frac{1}{2}(3.14)5^{2}$

$A_1=39.25\ ft^2$

step 2

Find the area of the triangle

The area of triangle is equal to

$A_2=\frac{1}{2}bh$

we have

$b=8\ ft\\h=6\ ft$

substitute

$A_2=\frac{1}{2}(8)(6)$

$A_2=24\ ft^2$

step 3

The area of the figure is equal to

$A=A_1+A_2$

substitute

$A=39.25+24=63.25\ ft^2$

5 0

3 years ago

Remember to round to the nearest tenth pls!

Lapatulllka [165]

Step-by-step explanation:

Using Pythagorus theorem:

$r = \sqrt{ {( - 6)}^{2} + {5}^{2} } = \sqrt{61}$

Therefore,

$diameter \: = 2 \sqrt{61} = 15.62$

3 0

3 years ago

5+1/√7 - √3 + 1/√7 - √3

dimulka [17.4K]

2.291827331. That is what I got.

3 0

2 years ago

Indicate whether the measures 11, 12, and 20 can be the side lengths of a triangle. If they can, classify the triangle.

IrinaVladis [17]

Answer:

Its obtuse

Step-by-step explanation:

one angel is above 90 degrees.

4 0

2 years ago

Can somone help me with 1,2,3 ????

Llana [10]

Answer:

This is a weird assignment

Step-by-step explanation:

1) 7.5 minute per mile

10 convert hours to min (900 min) and then simply the unit of 6771 miles by 900 min. The objective is to know how far you travel in one minute.

3) Chose any country in South America:

Brazil, Argentina, Peru, Columbia, Venezuela, Bolivia, etc.

6 0

2 years ago