1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
What is meant by sundial???​
Fofino [41]

Answer:

Sundial is an instrument showing the time by the shadow of a pointer cast by the sun on to a plate marked with the hours of the day.

4 0
2 years ago
Read 2 more answers
HELP HELP HELP HELP HELPPPPPPPPPPP
Firdavs [7]

Initial velocity (u) = 2 m/s

Acceleration (a) = 10 m/s^2

Time taken (t) = 4 s

Let the final velocity be v.

By using the equation,

v = u + at, we get

or, v = 2 + 10 × 4

or, v = 2 + 40

or, v = 42

The final velocity is 42 m/s.

5 0
2 years ago
Read 2 more answers
At a department store, you adjust the mirrors in the dressing room so that they are parallel and 6.2 ft apart. You stand 1.8 ft
barxatty [35]

Answer:

<em>a) 3.6 ft</em>

<em>b) 12.4 ft</em>

Explanation:

Distance between mirrors = 6.2 ft

difference from from the mirror you face = 1.8 ft

a) you stand 1.8 ft in front of the mirror you face.

According to plane mirror rules, the image formed is the same distance inside the mirror surface as the distance of the object (you) from the mirror surface. From this,

your distance from your first "front" image = 1.8 ft + 1.8 ft = <em>3.6 ft</em>

b) The mirror behind you is 6.2 - 1.8 = 4.4 ft behind you.

the back mirror will be reflected 3.6 + 4.4 = 8 ft into the front mirror,

the first image of your back will be 4.4 ft into the back mirror,

therefore your distance from your first "back" image = 8 + 4.4 = <em>12.4 ft</em>

8 0
3 years ago
Your front teeth can act as a simple machine. Which machine are they?
lawyer [7]
<span>Wedges is your answer please mark brainliest </span>
4 0
3 years ago
Read 2 more answers
Now find the components NxNxN_x and NyNyN_y of N⃗ N→N_vec in the tilted coordinate system of Part B. Express your answer in term
MArishka [77]

Answer:

N_{y} =NcosФ,

N_{x} =-Nsin Ф

Explanation:

Now find the components NxNxN_x and NyNyN_y of N⃗ N→N_vec in the tilted coordinate system of Part B. Express your answer in terms of the length of the vector NNN and the angle θθtheta, with the components separated by a comma.

Vectors are quantities that  have both magnitude and direction while scalar quantities have only magnitude but no direction.

This a vector quantity

from the diagram the horizontal component of the length of the vector will be

N_{y} =NcosФ

the vertical component will be

N_{x} =-Nsin Ф

this is in the opposite direction because the x can be extrapolated to the negative axis

7 0
3 years ago
Read 2 more answers
Other questions:
  • What occurs when two Stars collide into each other?
    8·2 answers
  • Which of the following is an explanation of how the natural world works, based on experimentation?
    13·2 answers
  • Which term describes substances that absorb some wavelenths of light
    15·1 answer
  • What is the frequency of radio waves with wavelength of 20m?
    15·2 answers
  • A dumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and length r. If I_1 is the m
    9·1 answer
  • A group of lions is chasing a zebra. The lions are most likely responding to which kind of stimulus
    9·1 answer
  • In the long jump, an athlete launches herself at an angle above the ground and lands at the same height, trying to travel the gr
    13·1 answer
  • Why is the world round
    13·1 answer
  • The standard metric unit of volume is the _____.
    14·1 answer
  • What is newton's gravitational constant? write down its value and SI until​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!