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3 years ago

What happens to the particles of the liquid inside a thermometer when the thermometer is heated?

Physics

2 answers:

Ahat [919]3 years ago

6 0

Speed up and spread apart

aev [14]3 years ago

5 0

The particles of the liquid inside a thermometer speed up and spread apart when the thermometer is heated. In short, the particles expand from one another when they're heated, and become condensed and compact when chilled.

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Which of the following is an example of a healthy behavior?

Greeley [361]

Answer moderate alcohol can be good for you health

Explanation: but I wouldn't do none of those things to be honest

SMARTEST

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2 years ago

A 19.3 kg dog is running northward at 2.98 m/s , while a 6.26 kg cat is running eastward at 3.64 m/s . Their 78.7 kg owner has t

m_a_m_a [10]

Answer:

v = 0.78 m/sec at 21.61° towards the east of north

Explanation:

Given a 19.3 kg dog is running northward at 2.98 m/s , while a 6.26 kg cat is running eastward at 3.64 m/s and the mass of the owner is 78.7 kg.

Given m(dog) = 19.3 kg and m(cat) = 6.26 kg

v(dog) = $2.98\vec{j}$ m/sec

v(cat) = $3.64\vec{i}$ m/sec

Given the $\vec{P}(owner)=\vec{P}(dog)+\vec{P}(cat)$

Let the velocity of the owner be $\vec{v}$

We know that $\vec{P}=m\vec{v}$

$m(owner)\times \vec{v}=m(dog)\times \vec{v(dog)}+m(cat)\times \vec{v(cat)}$

$78.7\times \vec{v}=19.3\times 2.98\vec{j}+6.26\times 3.64\vec{i}$

$\vec{v}=\frac{1}{78.7}(57.5\vec{j}+22.78\vec{i})$

$v=\sqrt{(\frac{57.5}{78.7})^2+(\frac{22.78}{78.7})^2 }$

v=0.78 m/sec

for direction

Tan(α)= $\frac{component of x}{component of y}$

where α is the angle toward east of north.

Tan(α)= $\frac{22.78}{57.5}$

α=21.61°

3 0

2 years ago

A water skier is pulled by a boat traveling with a constant velocity. Which one of the following statements is false concerning

ycow [4]

Answer:

C. There is a net horizontal force on the skier in the direction the boat’s velocity.

Explanation:

This is because, according to Newton's First law of motion, when an object which in this case is the skier tends to be in equilibrium because it travels at a constant velocity, there is no net acceleration of the skier, and this causes the net force on the skier to be equal to zero.

Therefore in this question, option C which states that "There is a net horizontal force on the skier in the direction the boat’s velocity" is a false statement.

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2 years ago

Which organ in our body produce longitudinal wave or mechanical wave

lapo4ka [179]

which organ in our body produce longitudinal wave?

P- swaves (Primary waves).

Explanation:

Body waves travel through the interior of the earth, and have two main types: P-Waves (Primary waves) are Longitudinal Waves. S-Waves (Secondary waves) are Transverse Waves.

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2 years ago

If two runners take the same amount of time to run a mile, they have the same __________.

Svet_ta [14]

I am going to say velocity because you have the same amount of acceleration going in a certain direction.

8 0

3 years ago

Read 2 more answers