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Svetach [21]
3 years ago
14

Tina decides to measure how the amount of force (in newtons) that concrete can withstand changes as the surface area over which

the force is spread out increases.
What would be an appropriate unit for Tina's purpose?
Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0

Answer:

Newtons per square milimeter

Step-by-step explanation:

Bumek [7]3 years ago
4 0

Answer:

N/m^2

Step-by-step explanation:

If the amount of force (newtons) is changing over the surface area, that means we should use units in the form of newtons over surface area, which is in the form of m^2.

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Yes it is less than 4,862
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3 years ago
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If a factory continuously dumps pollutants into a river at the rate of the quotient of the square root of t and 45 tons per day,
julsineya [31]
<h2>Hello!</h2>

The answer is:

The first option, the amount dumped after 5 days is 0.166 tons.

<h2>Why?</h2>

To solve the problem, we need to integrate the given expression and evaluate using the given time.

So, integrating we have:

\int\limits^5_0 {\frac{\sqrt{t} }{45} } \, dt=\int\limits^5_0 {\frac{1}{45} (t)^{\frac{1}{2} } } \, dt\\\\\int\limits^5_0 {\frac{1}{45} (t)^{\frac{1}{2} } } \ dt=\frac{1}{45}\int\limits^5_0 {t^{\frac{1}{2} } } } \ dt\\\\\frac{1}{45}\int\limits^5_0 {t^{\frac{1}{2} } } } \ dt=(\frac{1}{45}*\frac{t^{\frac{1}{2}+1} }{\frac{1}{2} +1})/t(5)-t(0)\\\\(\frac{1}{45}*\frac{t^{\frac{1}{2}+1} }{\frac{1}{2} +1})/t(5)-t(0)=(\frac{1}{45}*\frac{t^{\frac{3}{2}} }{\frac{3}{2}})/t(5)-t(0)

(\frac{1}{45}*\frac{t^{\frac{3}{2}} }{\frac{3}{2}})/t(5)-t(0)=(\frac{1}{45}*\frac{2}{3}*t^{\frac{3}{2} })/t(5)-t(0)\\\\(\frac{1}{45}*\frac{2}{3}*t^{\frac{3}{2} })/t(5)-t(0)=(\frac{2}{135}*t^{\frac{3}{2}})/t(5)-t(0)\\\\(\frac{2}{135}*t^{\frac{3}{2}})/t(5)-t(0)=(\frac{2}{135}*5^{\frac{3}{2}})-(\frac{2}{135}*0^{\frac{3}{2}})\\\\(\frac{2}{135}*5^{\frac{3}{2}})-(\frac{2}{135}*0^{\frac{3}{2}})=\frac{2}{135}*11.18-0=0.1656=0.166

Hence, we have that the amount dumped after 5 days is 0.166 tons.

Have a nice day!

5 0
3 years ago
Adam has dimes and quarters in his pocket. there are 28 coins in all, and they are worth $4.60 altogether.how many quarters does
pochemuha
16 dimes = $1.60
<em>12 quarters</em><em> </em>= $3.00
7 0
3 years ago
Will make brainliest with correct answer
MA_775_DIABLO [31]

Answer:

10

Step-by-step explanation:

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(f○g)(7)

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