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svet-max [94.6K]
3 years ago
13

Which two of the following are the densest of the materials shown?

Physics
1 answer:
kari74 [83]3 years ago
3 0

Explanation:

The density of the material is given by,

Density = \frac{mass}{Volume}

Case 1: Rock

Density = \frac{mass}{Volume}

Density = \frac{1000}{0.5}

Density = 2000 \frac{g}{L}

Case 2: Pillow

Density = \frac{mass}{Volume}

Density = \frac{200}{10}

Density = 20 \frac{g}{L}

Case 3: Bottle of Soda

Density = \frac{mass}{Volume}

Density = \frac{2000}{2}

Density = 1000 \frac{g}{L}

Case 4: Load of bread

Density = \frac{mass}{Volume}

Density = \frac{100}{1}

Density = 100 \frac{g}{L}

Thus, rock and bottle of soda has maximum density.

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A friend has written to you informing you that she/he giving him/her the name of some place in nepal
sleet_krkn [62]

Answer:

The answer is below

Explanation:

Dear Friend,

I received your letter a few days back. And because I was busy with work, I couldn't write a reply to you immediately. However, here is my well-detailed reply to your request. I hope you find it satisfactory. I am excited to learn that you wish to go on a tour to Nepal. For the advice, here is my suggestion for some places for you to visit.

1. Kathmandu: this is the capital of Nepal. It also doubles as the capital city. The atmosphere there is electric. The streets are wide and there are old monumental buildings there.

2. Bhaktapur: here you find interesting things around. It is the third-largest royal city. Durbar square is a nice place to visit.

3. Pokhara: this place has the largest population and the city is cleaner compared to most other big cities around. It has wonderful places to relax. And if you enjoy hiking this is the place for you.

4. Chitwan National Park: I know you love watching wildlife. So this is a must for you to visit. You get to see amazing animals such as rhinos, Bengal tigers, leopards, etc.

However, due to space and for me not to bore you, here are other honorable mentions

Trekking in the Langtang region, Swayambhunath, known as Monkey Temple. You should also consider the Everest & the Trek to Base Camp.

I hope you will enjoy your stay to the fullest. Don't forget to send me details of your tour after your visit.

I love you, friend.

Yours sincerely,

MyName

4 0
3 years ago
According to structural functionalists, what is government like in a mass society?
kvv77 [185]
The answer here is <span>The government is expansive</span>
8 0
3 years ago
Read 2 more answers
Review Questions
harina [27]

Answer:

  1. Milky way is a galaxy . Milky way has a spiral shape . The Milky Way has a relatively low surface brightness due to the gases and dust that fills the galactic disk. it comprises of dust particles , 200 billion stars.
  2. they are bounded into clusters due to gravitational force out there.
  3. when you ask how is gravity important to the galaxy within universe then ask what hold the lump of solar system together in this great cosmic soup when whole universe is expanding ? yea , there is gravity . Hravity holds these objects together and today we have a cute solar system .
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4 0
3 years ago
Please help Which graph shows the change in velocity of an object in free fall?
dmitriy555 [2]

The graph that shows the change in velocity of an object in free fall is graph B.

<h3>What is velocity?</h3>

Velocity is the speed of a body in a specified direction.

It is also defined as the ratio of displacement and tome.

Velocity is a vector quantity.

The change in velocity of a body is known as acceleration.

The velocity of a body undergoing free fall increases by a constant value given as by the acceleration due to gravity.

The graph which depicts this change in velocity is B.

Therefore, the graph that shows the change in velocity of an object in free fall is graph B.

Learn more about velocity and free fall at: brainly.com/question/24520854

#SPJ1

3 0
2 years ago
If a runner runs a race on a circular track that has a radius of 30 m and they complete the race in 125 seconds, but they end th
satela [25.4K]

To answer this question you must know that speed is only one magnitude, but velocity is a magnitude with an associated direction, that is, it is a vector.

For a circular movement like the one shown in the problem the velocity is defined as:

V = wr[-sin(\theta) x + cos (\theta)y]

Where:

w = angular velocity

r = radius of the circumference

\theta = angle of the object with respect to the origin

Speed is defined as:

v = |V|\\\\v = wr.

In this problem we know that:

r = 30 m

w = \frac{1\ turn}{125}\ s^{-1}\\\\w = \frac{2\pi}{125}\ s^{-1}\\\\w = 0.0503\ s^{-1}

So:

v = | V | = wr

v = (0.0503)(30)

v = 1.5079 m/s    speed of the runner

On the other hand:

V = 1.5079 [-sin(\theta)x + cos(\theta)y]\ m/s   velocity of the runner

3 0
3 years ago
Read 2 more answers
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