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Rina8888 [55]
3 years ago
6

A spring has a natural length of 25 meters. A force of 12 newtons is required to stretch the spring to a length of 30 meters. Ho

w much work is done to stretch the spring from it's natural length to 40 meters?
Mathematics
1 answer:
blagie [28]3 years ago
3 0
F = ks 
<span>12 = k(15) </span>

<span>12/15 = k </span>


<span>integrating from 0 to 15 </span>
<span>12/15 sds </span>


<span>12/15 x S squared / 2 from 0 to 15 </span>
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What is the least common multiple<br> 8 and 12?
Anna35 [415]

Answer:

24

Step-by-step explanation:

8 x 3 = 24

12 x 2 = 24

so 24 is your least common multiple

5 0
3 years ago
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A company has developed a new ink-jet cartridge for its printer that it believes has a longer life-time on average than the one
Mila [183]

Answer:

The test hypothesis is :

H_0: \mu=1502.5\\ H_a: \mu>1502.5

Step-by-step explanation:

Consider the provided information.

Null hypothesis refer the population parameter is equal to the claimed value.

If there is no statistical significance in the test then it is know as the null which is denoted by H_0, otherwise it is known as alternative hypothesis which denoted by H_a.

The historical average lifetime for cartridges produced by the current process is 1502.5 pages.

Hence, the test hypothesis is :

H_0: \mu=1502.5\\ H_a: \mu>1502.5

6 0
3 years ago
Which measurement is not equal 51 centimeters
AlladinOne [14]
A isn't equal to 51 centimeters

HOPE THIS HELPS :)

8 0
3 years ago
Instructions
PilotLPTM [1.2K]

<span>I chose a box of cereal-------> rectangular prism
</span>see the attached figure

Part 1)<span>List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).
Length: 20 cm
Width: 8 cm
Height: 32 cm

Part </span><span>2).
 Describe the shape of the cross-section when the box is cut parallel to the base

the shape of the </span>cross-section <span>would be a rectangle of dimensions
20 cm x 8 cm

Part 3)
</span><span>What is the surface area of the box? 
</span>
surface area=2*area of the base+perimeter of the base*height

area of the base=20*8=160 cm²

perimeter of the base=2*[20+8]-----> 56 cm
height=32 cm

surface area=2*160+56*32------> 2,112 cm²

the answer part 3) is
2,112 cm²

Part 4)
<span>What is the surface area of the box if it is scaled up by a factor of 10?
</span>
we know that
surface area of the larger box=[scale factor]²*surface area original box

scale factor=10
surface area original box=2,112 cm²
so
surface area of the larger box=10²*2,112-----> 211,200 cm²

the answer part 4) is
211,200 cm²

Part 5) 
<span>What is the volume of the box?
</span>
volume of the box=L*W*H-----> 20*8*32------> 5,120 cm³

the answer Part 5) is
5,120 cm³

Part 6) 
<span>What is the volume of the box if it is scaled down by a factor of 1/10

we know that
volume of the smaller box=[scale factor]</span>³*volume original box
scale factor=1/10
volume original box=5,120 cm³
so
volume of the smaller box=[1/10]³*5,120-----> 5.12 cm³

the answer part 6) is
5.12 cm³

6 0
3 years ago
What does -16t^2 mean in h(t)=5+100t-16t^2
marissa [1.9K]

-16t^2 represent the position on the graph on the negative side.

According to the statement

we have given equation is h(t)=5+100t-16t^2 -(1)

And we have to find representation of -16t^2

we know that the equation number (1) represent the Quadratic Equation

And in this we have to solve the Quadratic Equation and find the representation of the given terms. then

h(t)=5+100t-16t^2

5+100t-16t^2 = 0

16t^2 -100t-5 = 0

In this equation 16t^2 represent the equation on the graph.

It means that it shows the position on the graph.

Overall, -16t^2 represent the position on the graph on the negative side.

Learn more about GRAPH here brainly.com/question/4025726

#SPJ1

4 0
1 year ago
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