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arlik [135]
3 years ago
13

What do roller coasters, astronaut training, and a curved shape of a dam all have in common?

Mathematics
2 answers:
nikdorinn [45]3 years ago
8 0
They all have an arched shape
Darya [45]3 years ago
4 0
<span>They take advantage of the properties of parabolas to make theme parks fun, train astronauts, and cut construction costs!
Hope this helps!<span>
</span></span>
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A fulcrum moving a resistance of 200 g has a distance to the fulcrum of 20 cm, the effort mass of 50 g has a distance to the ful
S_A_V [24]

Answer:

The ideal mechanical advantage (IMA) is 4.

Step-by-step explanation:

The ideal mechanical advantage is the ratio of length of longer lever L_e to that of shorter lever L_r

IMA \frac{L_e}{L_r}

Please refer to the image attached.

We could see that the the resistance load moves 10\ cm cm towards the fulcrum so the distance of resistance load from fulcrum = (20-10) =10\ cm

Now the as the effort force moves 40\ cm towards the fulcrum overall distance from the fulcrum to the effort force (load) =(80-40)=40\ cm

Plugging the values of the distances in IMA formula we can have.

IMA =\frac{(80-40)}{(20-10)} =\frac{40}{10}  =4.

So the IMA of the fulcrum (simple machine) = 4

3 0
4 years ago
Rational numbers can be expressed as? A- real numbers C- whole numbers Rational numbers can be expressed as? A- real numbers B-
Anettt [7]
Hello there.

<span>Rational numbers can be expressed as

</span><span>quotient or fraction</span>
8 0
3 years ago
Paul filled pint containers with 440 cups of water. How many pint containers did Paul need? 1 pint = 2 cups
Tju [1.3M]
For this case we can make the following rule of three:
 1pint ------> 2cups
 x -----------> 440 cups
 Clearing x we have:
 x = (440/2) * (1)
 x = 220 pint containers.
 Answer:
 
Paul needs about:
 
x = 220 pint containers.
8 0
3 years ago
Read 2 more answers
Is the square root of 2 between 1.4 and 1,5
Alex_Xolod [135]

Answer:

The square root is around 1.414, so yes, it is between 1.4 and 1.5.

Step-by-step explanation:

6 0
3 years ago
What is the sum of 3/4 × 1/2 ?
Tatiana [17]
3/4 x 1/2 = 3/8

Hehehe
3 0
4 years ago
Read 2 more answers
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