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Umnica [9.8K]
2 years ago
8

Can someone please answer this, ill give you brainliest Would be very appreciated.

Physics
2 answers:
ira [324]2 years ago
8 0

Answer:

Expansion

Explanation:

According to boyles law

  • P is indirectly proportional to V

According to gay lussac's law

  • P is directly proportional to T

In freezer

  • T decreases so P decreases

Hence V increases

Leona [35]2 years ago
5 0

Solution: Expansion

Explanation:

When we put a glass bottle in the freezer, the volume of water is supposed to expand causing high surface tension leading to the glass to crack. As the volume of water increases, there is less space for the water to fit in.

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False, it will just dissolve slowly

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What is the kinetic energy of a toy truck with a mass of 0.75 kg and a velocity of 4 m/s? (Formula: )
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Calculate the magnetic field at 2m from a straight wire carrying a current of 5 A. (K = 2 x 10 ^-7)
blagie [28]

Answer:

B=5\times 10^{-7}\ T

Explanation:

Given that,

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B=\dfrac{\mu_0I}{2\pi r}\\\\B=\dfrac{4\pi \times 10^{-7}\times 5}{2\pi \times 2}\\\\B=5\times 10^{-7}\ T

So, the required magnetic field is 5\times 10^{-7}\ T.

6 0
3 years ago
Write a summary paragraph of 200 words discussing this experiment and the results. Use the following questions and topics to hel
Papessa [141]

Answer:

What was your hypothesis? According to your data, do you think your hypothesis was correct? (Be sure to refer to your data when answering this question.)

Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.

Be sure to submit your data along with your paragraph.

Part 2

What effect did the temperature have on the viscosity of the honey? (Be sure to refer to your data when answering this question.)

Give at least two practical examples where knowledge of viscosity is important.

Essay Question:

Write a summary paragraph for each part discussing this experiment and the results. Use the following questions and topics to help guide the content of your paragraph.

Part 1

What was your hypothesis? According to your data, do you think your hypothesis was correct? (Be sure to refer to your data when answering this question.)

Summarize any difficulties or problems you had in performing the experiment that might have affected the results. Describe how you might change the procedure to avoid these problems.

Be sure to submit your data along with your paragraph.

Part 2

What effect did the temperature have on the viscosity of the honey? (Be sure to refer to your data when answering this question.)

Give at least two practical examples where knowledge of viscosity is important.

5 0
4 years ago
QUESTION 10
Elena L [17]

The maximum value of θ of such the ropes (with a maximum tension of 5,479 N) will be able to support the beam without snapping is:

\theta =37.01^{\circ}

We can apply the first Newton's law in x and y-direction.

If we do a free body diagram of the system we will have:

x-direction

All the forces acting in this direction are:

T_{1}sin(\theta)-T_{2}sin(\theta)=0    (1)

Where:

  • T(1) is the tension due to the rope 1
  • T(2) is the tension due to the rope 2

Here we just conclude that T(1) = T(2)

y-direction

The forces in this direction are:

T_{1}cos(\theta)+T_{2}cos(\theta)-W=0   (2)

Here W is the weight of the steel beam.

We equal it to zero because we need to find the maximum angle at which the ropes will be able to support the beam without snapping.

Knowing that T(1) = T(2) and W = mg, we have:

T_{1}cos(\theta)+T_{1}cos(\theta)-m_{steel}g=0

2T_{1}cos(\theta)-m_{steel}g=0

2T_{1}cos(\theta)=m_{steel}g

T(1) must be equal to 5479 N, so we have:

cos(\theta)=\frac{m_{steel}g}{2T_{1}}

cos(\theta)=\frac{892*9.81}{2*5479}

cos(\theta)=\frac{892*9.81}{2*5479}

cos(\theta)=0.80

Therefore, the maximum angle allowed is θ = 37.01°.

You can learn more about tension here:

brainly.com/question/12797227

I hope it helps you!

8 0
3 years ago
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